Indianapolis Colts running back Trent Richardson will spend the offseason with the mind frame that he’s in school.

Learn, learn and learn the playbook some more. That will be his mentality as he knows the critics are still there and he knows the excuse of not knowing the Colts’ offensive system can no longer be used.

Richardson spent too much time thinking when he took the handoff than running with the type of speed and force that made him the No. 3 overall pick in the 2012 draft.

“Learn the system, not just memorizing it,” Richardson said. “Learning the whole concept of the system. There's a difference between having it memorized and feeling comfortable with the system. I’m going talk to a lot of veteran players, talk to Adrian (Peterson), talk to (LaDainian Tomlinson) , talk to Emmitt Smith to make sure I’m the best I need to be next year.”

The Colts went from pulling off the biggest trade of last season when they acquired Richardson from the Cleveland Browns for a first-round pick to currently having the move favor the Browns after Richardson only averaged 2.9 yards a carry. The thought of the dynamic duo of Richardson and quarterback Andrew Luck has yet to come together. Richardson ended up losing the starting running back position to Donald Brown on Dec. 1, 2013.

Colts general manager Ryan Grigson defended the trade during his season-ending press conference last month. It is too soon to call Richardson a bust because he got acquired during the middle of the season. He needs a full offseason of OTA’s, minicamp and training camp before a better evaluation can be given on him.