Are you in the pre-season or regular season? If it's the pre-season, you just need to play those games (and maybe sim; I don't know, I haven't simmed any pre-season games yet) and the players will learn the playbook by themselves.
For the regular season, hopefully they are the starters. If not, you may have to play them in the regular season to get their numbers up. If it is the regular season and they are cleary not as good as the people ahead of them in the depth chart, I'd just let the goal go as a failure. It's much better to win games than to achieve a relatively meaningless season goal. You'll do better in the long-run.