If the Ravens make a trade for McNair right now, then they'll have to pay McNair the 9,000,000 in bonuses that the Titans owe McNair right now. If the Ravens wait until a couple weeks from now for the Titans to cut McNair, they can get him at a cheaper price (they've already discussed a contract). So by waiting, the Ravens will get McNair at a cheaper price, but they'll also have very little time to actually be able to sit down and teach him the playbook. Its a damned if you do, damned if you don't kinda thing.
Either way...the Ravens won't be leading the AFC North anytime soon :devious: