The San Francisco 49ers waived veteran wide receiver Darrell Jackson on Saturday.

Michael Lewis is learning a new system on the fly, and the former Pro Bowl safety is running out of time to absorb all the details of his new game before the serious competition starts.

Sure, Lewis is off to an outstanding start in his new job with the San Francisco 49ers -- but it's really cutting into his ability to master Madden NFL '08.

''I've got this playbook I'm trying to get down,'' Lewis said Thursday, gesturing at the thick black binder in his locker. ''I can't worry about Madden's playbook.

 I felt like they made too many changes to the game play. It's difficult. You really have to have the time to sit and go through it. It's too much. Too detailed.''