Why rest Rooney?
With us out of the CL we should be willing and able to field our best possible team, after suspensions and injuries, on a consistent basis which is beneficial for a side. Fatigue and overseas trips no longer a concern, rotation and resting of players is i would say arrogant and complacent, this cannot be justified IMO.
And i don't think we have the personnel to act like it either [even if some think we should], not for a while will we have the luxury.
2nd spot may not win you a trophy or a place in football history, but you are awarded with a guarantee of Champions League football, finanical security and more time to prepare for the challenge ahead next season, you know where you stand and so will the players you are looking to bring in. If we secure all that, our rivals, Liverpool, don't.
There's always the chance of a Partisan Belgrade situation like with what happened to Newcastle a couple of seasons back and look at them now, let the others take such risks.
But that's just me i guess.