The Green Bay Packers will continue to play Ty Montgomery at running back and he'll change his number from No. 88.
McCarthy said Montgomery expressed the desire to remain at that position when the two met this week during player-exit interviews.
"He's a running back, so he wants to change his number and that's the way we're going," McCarthy said. "So he'll spend the whole offseason clearly working at the running back position. Obviously, the ability to flex out and play receiver and those types of things will be his secondary responsibility. But he'll be on the depth chart as a running back."
Montgomery led the Packers in rushing with 457 yards on 77 carries, an average of 5.9 yards per carry.
Montgomery's role next season could depend on whether the Packers re-sign Eddie Lacy, who will be a free agent in March.