I'm going to look at the all-22 this week in particular, because as others have mentioned, Peters looks out of place frequently in zone coverage. I don't recall how well he did in LA or KC with such schemes, but obviously Wink didn't play much zone, and so most of his time here in BAL has been in man coverage, where I think he does a lot better.
He at least optically in live situations appears to be a lot similar to Queen in terms of flaws in zone coverage, i.e. he frequently gets lost in space and doesn't appear sure about what depth he should be at or where the proper spots to sit in the zone are.
Would also point out that a lot of the positives we've seen from Peters in the past, i.e. jumping routes and freelancing a bit at times when he thinks he has a chance to make a play on the ball, do have downsides, and I've seen a couple of those. I believe there were at least 1-2 routes yesterday where we were in zone coverage and Peters bit on the underneath route and then was subsequently beaten over the top into his zone. Now some of that could be design and errors made by the Safeties, but its hard to tell in live games.
But my overall impression from yesterday is that whatever coverage they were playing that involved Zone or Cover 2-3, there was a huge disconnect between Peters and whoever the Safety was with the over the top help. Even on the RB TD on the wheel route, just looked like nobody knew what to do.
One things for sure though... if Peters continues to struggle this much in Zone, he's gone next year. MacDonald is going to play more zone than Wink did, as well he should. I think the days of Corners being specific to either man or zone coverages are over. If you can't play both, you're not going to be nearly as effective. Offenses are too good to play one coverage consistently. Defenses have to be multiple, and so do the players.