If I have control I am doing the following:
Trade PP for a 1st a 3rd. Hes going to walk after next year, and I don't think his value will be any higher than it is right now. We SEEM to have a QB and a system that can work, so I would take the picks to build around them. PP is not going to be a part of our next playoff team IMO, so you take the picks.
Next I would trade a 3rd rounder for Leonard Williams, assuming we could work out a new deal for him. He is a young D-Lineman that can help us put some pressure on the QB. If we can sign him to a 4 year deal, he could very well be a key part of a good defense in the future.
Next I would offer the Redskins a 2nd rounder for Trent Williams, assuming we could extend his deal. I don't know if they would take it, but we need to offer.
We would have aquired 2 of the best Lineman available, and did not have to worry about outbidding or overpaying in FA.
I would play out the rest of the season trying to develop something with the young WR, and trying to continue evolving KM. If we can ever become a lethal RPO/Play Action team, KM could be really really good. Like most QB's, he will be much better with a consistent running game, whether it comes from him or the RB's.
At the end of the season I would take a real hard look at Keim and Vance Joseph. I'm not saying I would for sure fire either of them, I think it depends on who the replacement is. If there is a clear upgrade, meaning someone with some NFL experience and success, then I think it could be time to clean house.
In Free Agency and the draft I would prioritize RT, OC, D-Line, WR, and LB. With 2 1st round picks, we should still be able to be flexible and move around if needed.