So I don't hate the strategy, BUT...
Where are these draft picks coming from? Remember, no 2nd rounder. Unless we're like trading out of the first round entirely to get more picks (which is possible), we've got two picks before end of day 2.
WR is obviously massively high on the list, and I think most people are in on the idea of Peters not returning, which means Corner is now on that list. If that's the case, and there's no trade for more picks, either WR, CB or Guard isn't happening until round 4 at the earliest. I'm personally fine with a 4th or 5th rounder at interior Oline, but I've be super skittish to see us wait until day 3 for a WR or CB.
I don't know what Powers price tag will be. If its like $6-7M a year, I'm extending him and keeping Zeitler for another year or two. Probably give Zeitler a 1-2 year extension and he'll go on the Campbell track, which is year-to-year until he retires basically.
If anything, I'd consider cutting Moses to keep Powers perhaps. I already have two players on the roster who should be able to play RT reasonably well (Mekari and Faalele). I don't seemingly have anybody on the roster who can play Guard.
All of this is also in the context of assuming there's no extension for Lamar. If Lamar gets extended, opens up everything. Can re-sign whoever, can look to FA for upgrades, etc.