Juwan Thompson ran very well last night.  Also, I thought he was the one running back who consistently converted on short yardage situations picking up 1st downs in the process.  And that is the main weakness on offense.  Picking up 1st downs in short yardage.
Having said that, there is no way Denver could keep Juwan.  Only way to keep Juwan would have been to trade C.J. Anderson and hand the running back job to Charles, Henderson and Booker (when healthy).  And the Broncos did not have the guts to pull the trigger on that option.  I think C.J. has severely underperformed since signing his new contract.  For a big back, he struggles to pick up a yard or two when you need it.