So, you can only imagine two months later when Cook signed on Wednesday just how "excited" the native of Pine Bluff, Ark., is to join the Cardinals' program.
The 6-foot-1, 236-pound Cook is the highest rated among the five junior-college players signed on Wednesday by U of L. He checks in as the No. 61 JUCO prospect in the nation, according to Scout.com.
"I'm ready," said Cook, who will enroll in January and can participate in spring ball with the Cardinals starting in March.
Cook played high school ball at Pine Bluff, Ark., White Hall High and he was recruited by Petrino's staff when he was at Arkansas as a young linebacker. Cook said the Arkansas staff later put him at the junior college before the coaching change.
And then Petrino "found me," at the junior college.
"It's just a great feeling," Cook said. "I can't wait to play in that offense."
As a sophomore at Eastern Arizona this season, Cook rushed 100 times for 639 yards and seven touchdowns in just nine games. He only had one fumble in 100 carries.
Cook also played linebacker and had seven tackles, including a tackle for a loss and a sack. He picked U of L over a host of schools, including Nebraska, Arizona and California.