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  • Sat., Jan. 20, 2018 12:00 AM MST NFLPA Collegiate Bowl NFLPA Collegiate Bowl, Rose Bowl, Pasadena, California.
  • Sat., Jan. 20, 2018 12:00 AM MST East-West Shrine Game East-West Shrine Game, Tropicana Field, St. Petersburg, Florida.
  • Sat., Jan. 27, 2018 12:30 PM MST Senior Bowl Senior Bowl, Ladd-Peebles Stadium, Mobile, Alabama.
  • Tue., Feb. 27, 2018 12:00 AM MST NFL Scouting Combine begins Feb. 27-March 5: NFL Scouting Combine, Lucas Oil Stadium, Indianapolis, Indiana.
  • Mon., Mar. 12, 2018 12:00 AM MDT Clubs may negotiate with unrestricted free agents March 12-14: Clubs are permitted to contact, and enter into contract negotiations with, the certified agents of players who will become Unrestricted Free Agents upon the expiration of their 2017 player contracts at 4:00 p.m., New York time, on March 14. However, a contract cannot be executed with a new club until 4:00 p.m., New York time, on March 14.
  • Wed., Mar. 14, 2018 2:00 PM MDT 2018 league year and free agency period begin

    Prior to 4:00 p.m., New York time, clubs must exercise options for 2018 on all players who have option clauses in their 2017 contracts.

    Prior to 4:00 p.m., New York time, clubs must submit qualifying offers to their Restricted Free Agents with expiring contracts to retain a Right of First Refusal/Compensation.

    Prior to 4:00 p.m., New York time, clubs must submit a minimum salary tender to retain exclusive negotiating rights to their players with expiring 2017 contracts who have fewer than three accrued seasons of free agency credit.

    Top 51 begins. All clubs must be under the 2018 salary cap prior to 4:00 p.m., New York time.

    All 2017 player contracts will expire at 4:00 p.m., New York time.

    The 2018 league year and free agency period begin at 4:00 p.m., New York time.

    The first day of the 2018 league year will end at 11:59:59 p.m., New York time, on March 14. Clubs will receive a personnel notice that will include all transactions submitted to the league office during the period between 4:00 p.m., New York time, and 11:59:59 p.m., New York time, on March 14.

    The first day of the 2018 league year will end at 11:59:59 p.m., New York time, on March 14. Clubs will receive a personnel notice that will include all transactions submitted to the league office during the period between 4:00 p.m., New York time, and 11:59:59 p.m., New York time, on March 14.

    Trading period for 2018 begins at 4:00 p.m., New York time, after expiration of all 2017 contracts.

  • Sun., Mar. 25, 2018 12:00 AM MDT Annual League Meetings begin March 25-28: Annual League Meetings, Orlando, Florida.
  • Mon., Apr. 16, 2018 12:00 AM MDT Clubs with returning head coaches may begin offseason workout programs April 16: Clubs with returning head coaches may begin offseason workout programs.
  • Thu., Apr. 26, 2018 6:00 PM MDT 2018 NFL Draft begins April 26-28: 2018 NFL Draft, AT&T Stadium, Arlington, TX.

Football Operations

Bill Kollar
Defensive Line
Age:
65
College:
Montana State
Experience:
29

Bill Kollar enters his second season as defensive line coach for the Denver Broncos in 2017. He was hired by the club on Jan. 26, 2015.

Kollar owns 33 years of coaching experience, including the last 26 seasons instructing defensive linemen at the NFL level. Before coming to Denver in 2015, he coached the defensive line for Houston (2009-14), Buffalo (2006-08), St. Louis (2001-05) and Atlanta (1990-2000).

BILL KOLLAR
DEFENSIVE LINE 
29th NFL Season (3rd with Broncos)

Bill Kollar enters his second season as defensive line coach for the Denver Broncos in 2017. He was hired by the club on Jan. 26, 2015.

Kollar owns 33 years of coaching experience, including the last 26 seasons instructing defensive linemen at the NFL level. Before coming to Denver in 2015, he coached the defensive line for Houston (2009-14), Buffalo (2006-08), St. Louis (2001-05) and Atlanta (1990-2000).

In his first season with the Broncos, Kollar led a defensive line that accounted for 18 of the team’s league-best 52 sacks. Five different defensive linemen posted multiple quarterback takedowns in 2015 and the unit batted down 11 passes at the line of scrimmage.

Defensive ends Derek Wolfe and Malik Jackson combined with nose tackle Sylvester Williams to start 43-of-48 possible games for the Super Bowl-champion Broncos while helping Denver finish first in the NFL in total defense (283.1 ypg), including a No. 1 ranking against the pass (199.6 ypg) and a No. 3 ranking against the run (83.6 ypg). Reserve linemen Antonio Smith, Vance Walker and Darius Kilgo saw significant playing time as well, contributing more than 850 snaps from scrimmage.

Before arriving in Denver, Kollar spent six years with Houston, including his first five years with the franchise as assistant head coach/defensive line on Gary Kubiak’s staff. During his tenure with the Texans, the team ranked eighth in the NFL in total defense (329.4 ypg) and third in the league in opponent third-down percentage (35.9).

The five best run defenses in franchise history came during Kollar’s tenure with Houston, including back-to-back seasons (2011-12) in which the team held opponents to an average of less than 100 yards per game.

Kollar’s unit adjusted to the defense’s transition to a 3-4 scheme in 2011 under current Broncos Defensive Coordinator Wade Phillips. In addition to posting the third-largest defensive turnaround (-91.2 ypg) in NFL history in 2011, the Texans posted back-to-back seasons with a team-record 44 sacks in 2011 and 2012 to rank fifth in the league during that two-year stretch.

Defensive ends Mario Williams, Antonio Smith and J.J. Watt combined for five Pro Bowls playing for Kollar in Houston. Watt, who was named NFL Defensive Player of the Year by the Associated Press following the 2012 and 2014 seasons, led the league with 51 sacks during his four seasons under Kollar and became the first player in league history to post multiple campaigns with 20 or more sacks.

Kollar spent three years in Buffalo (2006-08), where he coached future All-Pro defensive tackle Kyle Williams and two-time Pro Bowl defensive end Aaron Schobel. Williams started 43-of-48 games to begin his NFL career under Kollar while Schobel was selected to play in consecutive Pro Bowls beginning in 2006 when he posted a career-high 14 sacks to rank second in the AFC.  

Prior to his three-year stint with Buffalo, he spent five seasons coaching the defensive line in St. Louis. Defensive end Leonard Little ranked fifth in the NFL with 55.5 sacks during that span and was named to the Pro Bowl in 2003. Kollar’s defensive line was instrumental in the Rams’ 2001 Super Bowl run as the club ranked third in the NFL in rush defense (85.9 ypg) while tying for the seventh-most sacks (45) in the league.

Kollar spent more than a decade (1990-2000) coaching the defensive line for the Falcons, highlighted by an NFC Championship in 1998 and an appearance in Super Bowl XXXIII against Denver. Pro Football Hall of Fame defensive end Chris Doleman played two seasons (1994-95) for Kollar and totaled 16 sacks for the Falcons, including nine quarterback takedowns in 1995 to earn his seventh career Pro Bowl selection.

A defensive lineman for eight seasons with Cincinnati (1974-76) and Tampa Bay (1977-81) after being selected by the Bengals in the first round (23rd overall) of the 1974 NFL Draft, Kollar began his coaching career as a defensive assistant/special teams with the Buccaneers in 1984.

Kollar spent a year as a graduate assistant at the University of Illinois in 1985 before being promoted to coach the defensive line and special teams for the Illini from 1986-87. He coached the same position for Purdue University from 1988-89 before beginning his NFL career with the Falcons in 1990.

An All-American defensive lineman at Montana State University, Kollar went on to earn Most Valuable Player honors at the 1974 Senior Bowl and was inducted into the Senior Bowl Hall of Fame in 2014.

Kollar and his wife, Jan, have two sons, Chad and Clint. He was born on Nov. 27, 1952, in Warren, Ohio.
                                         
PRO BOWL PLAYERS COACHED (6): DE Chris Doleman (1995), DE Leonard Little (2003), DE Aaron Schobel (2006-07), DE Antonio Smith (2011), DE J.J. Watt (2012-14), DE Mario Williams (2009).
*as primary position coach

COACHING EXPERIENCE

Denver Broncos
Defensive Line                                    2015-17

Houston Texans
Defensive Line                                    2014
Asst. Head Coach/Defensive Line       2009-13

Buffalo Bills
Defensive Line                                    2006-08

St. Louis Rams
Defensive Line                                    2001-05

Atlanta Falcons
Defensive Line                                    1990-2000

Purdue University
Defensive Line/Special Teams             1988-89

University of Illinois
Defensive Line/Special Teams             1986-87
Graduate Assistant                              1985

Tampa Bay Buccaneers
Defensive Asst./Special Teams            1984    

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