This is an interesting story questioning Vikings QB Tavaris Jackson's toughness. It basically states that NFL players need to learn how to play with pain or forget about being a starter. That's apparently how the great ones like Brett Favre and Peyton Manning pile up these consecutive game streaks - and something that contributes to their greatness. Apparently, Mr. Jackson hasn't learned this toughness thing yet and is being called out for it in this article.
I guess it's a matter of sucking it up and still being productive when you're less than 100%. There's some sort of old adage about anybody being able to succeed when they're hot, but the great ones figuring out a way to do it even when they're not. I guess a prime example of this was Tiger Woods winning the U.S. Open with a broken leg. He figured it out and got it done, and now he can rest on his laurels. So, is Tavaris Jackson more like Tiger Woods or Eric Gange - a relief pitcher who always looked great until you put him in a real pressure cooker?