Keeper tight ends

OK. You've got Antonio Gates in your keeper league, but you also have two stud running backs, say Edge James and Clinton Portis.
Who do you keep?
It's a no-brainer actually. You have to keep Gates because he's so much better than the rest of the tight ends out there, including Tony Gonzalez and Jeremy Shockey.
Would I keep Gonzalez or Shockey over a stud running back? That's where it gets a little more difficult.
Gonzalez had a bunch of catches again this season, but didn't score many touchdowns. Shockey, meanwhile, has been somewhat injury-prone during his career.
But there are certainly more good running backs available - and plenty of more help coming in this year's draft – than there are stud tight ends.
If you can be happy with Heath Miller at tight end, go ahead and keep the running backs. But if you want the best, you're going to have to protect Gates, Gonzalez and Shockey.