The playbook will increase this week for running back Dimitri Nance, who was acquired off Atlanta's practice squad last week.
Nance is learning new plays, new terminology and new concepts.
"We worked him more today in practice, trying to give him some things," McCarthy said. "He's going through such a terminology change. It's a lot different than what he's been exposed to, just from the digit system. Our words are his numbers and his old numbers are our words and so forth.
"To do that and also to be able to play the speed of a blitz drill, he's going through an adjustment right now."