2 of 21

Bo Pelini

Bruce-Thorson-USA-TODAY-Sports
Bruce-Thorson-USA-TODAY-Sports

The head coach at Nebraska is always mad and yelling about something. His reputation as a hot-head is well founded. As it turns out, his anger towards fans nearly cost him his job.

3 of 21

Bo Ryan

David-Banks-USA-TODAY-Sports
David-Banks-USA-TODAY-Sports

Bo Ryan displays some very 'unique' looks on his face during Wisconsin basketball games. He's always fuming mad, but he also has a very competitive team in the Big Ten conference every year.

4 of 21

Rex Ryan

Robert-Deutsch-USA-TODAY-Sports
Robert-Deutsch-USA-TODAY-Sports

Ryan wears his emotions on his sleeve during each and every Jets game. You can say what you want about his actions, but you can't argue that he's very passionate about what he does for a living.

5 of 21

Bret Bielema

Nelson-Chenault-USA-TODAY-Sports
Nelson-Chenault-USA-TODAY-Sports

Bielema is your classic hot-head coach. He's also got quite an ego, that's hopefully been put in check by his first season in the SEC.

6 of 21

Tom Coughlin

Brad-Penner-USA-TODAY-Sports
Brad-Penner-USA-TODAY-Sports

Coughlin is known for his military style of coaching. By most accounts he's calmed down over the last few years, but there's no doubt he's one of the firiest coaches in the NFL.

7 of 21

Nick Saban

Matthew-Emmons-USA-TODAY-Sports
Matthew-Emmons-USA-TODAY-Sports

Saban is never happy. He's always plotting his next move, which is usually winning another national championship. Say what you what about his oddball attitude, the guy gets results.

8 of 21

Mike Shanahan

Geoff-Burke-USA-TODAY-Sports
Geoff-Burke-USA-TODAY-Sports

When things don't go right, Shanahan's face gets as red as Rudolph's nose on Christmas Eve. His blood pressure has to be off the the charts every time Washington gets a penalty.

9 of 21

Patrick Roy

Geoff-Burke-USA-TODAY-Sports
Geoff-Burke-USA-TODAY-Sports

The first-year head coach made a splash in this inaugural game. Roy got into it with another coach between the glass and kept his reputation from his playing days going.

10 of 21

Mike Gundy

Richard-Rowe-USA-TODAY-Sports
Richard-Rowe-USA-TODAY-Sports

In case you didn't know, Mike Gundy is a man. He's also forty.

11 of 21

Brian Kelly

Matt-Cashore-USA-TODAY-Sports
Matt-Cashore-USA-TODAY-Sports

Kelly brings an edge with him to the field each and every Saturday. He's not a popular guy outside of the midwest, but there's no denying that he's brought the Irish back to relevancy.

12 of 21

Urban Meyer

Jerry-Lai-USA-TODAY-Sports
Jerry-Lai-USA-TODAY-Sports

Meyer is an intense coach. But he just has a way of maximizing the contributions from his players. Now that he's an established championship-winning coach, he can basically act however he wants the rest of his career.

13 of 21

Mike Stoops

Tim-Heitman-USA-TODAY-Sports
Tim-Heitman-USA-TODAY-Sports

Mike Stoops is now the defensive coordinator at Oklahoma on the same staff with his brother. But just because he's no longer a head coach, doesn't mean he's still not mad as heck at all times.

14 of 21

Kirk Gibson

Kim-Klement-USA-TODAY-Sports
Kim-Klement-USA-TODAY-Sports

Gibson is now the angriest coach in MLB. All of the old dirt kickers and umpire degraders have retired. When you look across the board, baseball managers are pretty tame these days. But not Gibson.

15 of 21

Tim Floyd

Kim-Klement-USA-TODAY-Sports
Kim-Klement-USA-TODAY-Sports

Floyd has made a lot of rounds during his coaching career. He's gone from Iowa State to the Chicago Bulls and now to UTEP. He may have outdone himself last season, though, as he had to be escorted off the court by a police officer.

16 of 21

Tom Crean

Bob-Donnan-USA-TODAY-Sports
Bob-Donnan-USA-TODAY-Sports

Crean has one of the best jobs in college basketball. He seems like he'd be a pretty nice guy off the court, but on it, he's got a serious attitude problem.

17 of 21

Thad Matta

Reese-Strickland-USA-TODAY-Sports
Reese-Strickland-USA-TODAY-Sports

Matta gets spitting mad at his Ohio State Buckeyes. But nearly every season, his teams compete for a Big Ten Championship.

18 of 21

Steve Spurrier

Jeff-Blake-USA-TODAY-Sports
Jeff-Blake-USA-TODAY-Sports

The Ol' Ball Coach is pretty cranky these days. I guess that will happen when the best defensive player in the country, who's on your team, decides to pack in it for the year.

19 of 21

Gregg Popovich

Steve-Mitchell-USA-TODAY-Sports
Steve-Mitchell-USA-TODAY-Sports

Pop is straight up grumpy. He hates doing interviews and he's never satisfied with his team. However, you can make a solid argument that he's the second best coach of the modern era.

20 of 21

Fran McCaffery

Reese-Strickland-USA-TODAY-Sports
Reese-Strickland-USA-TODAY-Sports

For those of you unfamiliar with Fran McCaffery, he basically sets the standard for angry coaches in college basketball these days. He's brought the Iowa Hawkeyes back to relevancy in the Big Ten, so look for him this upcoming season. He'll be the one yelling so loudly that he's shaking in Hulk-like fashion.

21 of 21

Jim Harbaugh

Cary-Edmondson-USA-TODAY-Sports
Cary-Edmondson-USA-TODAY-Sports

No coach in America today wears their emotions on their sleeve like Jim Harbaugh. There's no doubt that he's one of the best in the business after only three years, but man, does he get animated on the sidelines. For those of you asking when he's going to grow up? The answer is never.


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