I say no.
I've seen enough of Papa to know he has Gasol level talent. Remember, he's 19.
Between the other 5/6 players, I think at least one will be a borderline all star, and several will be top ten in their position in 3-5 years.
I actually really like the make up of our team right now. It's been a while since we had this much young talent, and a coach good at developing it, with a solid set of vets to lead by example. Two more draft picks, and HUGE cap space this summer... we are in better shape than people realize.
Let these kids incubate and develop loyalty among themselves, and you will have an "anti-fragile" team that can grow and is not dependent on the whim of any one super star.