Head coach Gary Barnett had high praise for all four, but singled out Fenton.
"Mark Fenton has probably come the farthest on our football team of any player; maybe as far as any player I've ever had," Barnett said. "He's absolutely changed everything in his life to achieve this award. I'm really pleased for him because he really has worked hard to get to this position."
Fenton said he had set a personal goal of earning second-team league honors this season, and shooting for the first team next year.
"But it's an honor to be noticed by the coaches," Fenton said.
Crosby, the junior from Georgetown, Texas, was also named the league's Special Teams Player of the Year.
Honorable mention: J.J. Billingsley, DB; Gerett Burl, DB; Hugh Charles, RB; Brian Daniels, OL; Jordon Dizon, LB; Tyrone Henderson, DB; Joel Klatt, QB; Vaka Manupuna, DL; Clint O'Neal, OL; Quinn Sypniewski, TE; Thaddaeus Washington, LB.
The following is the complete first team.
QB Vince Young** Texas Jr.
RB Adrian Peterson [r] Oklahoma So.
RB Taurean Henderson Texas Tech Sr.
FB J.D. Runnels Oklahoma Sr.
WR Todd Blythe Iowa State So.
WR Jarrett Hicks Texas Tech Jr.
WR Joel Filani Texas Tech Jr.
TE Joe Klopfenstein Colorado Sr.
OL Justin Blalock** [r] Texas Jr.
OL Davin Joseph** Oklahoma Sr.
OL Jonathan Scott [r] Texas Sr.
OL Will Allen Texas Sr.
OL Mark Fenton Colorado Jr.
OL Tony Palmer Missouri Sr.
PK Mason Crosby** [r] Colorado Jr.
KR/PR Charles Gordon Kansas Jr.
DL Rod Wright Texas Sr.
DL Dusty Dvoracek [r03] Oklahoma Sr.
DL Charlton Keith Kansas Sr.
DL Tim Crowder Texas Jr.
DL Nick Leaders Iowa State Sr.
LB Rufus Alexander Oklahoma Jr.
LB Nick Reid Kansas Sr. Derby, Kan./Derby LB Aaron Harris Texas Sr.
DB Michael Huff [r] Texas Sr.
DB Dwayne Slay Texas Tech Sr.
DB Cedric Griffin Texas Sr.
DB Willie Andrews [r] Baylor Sr.
DB LaMarcus Hicks Iowa State Sr.
P John Torp Colorado Sr.