The biggest problem or concern I have right now is the rotation. Lopez, stud. No worries there. Ryan, if we're getting the pitcher we saw in the first of 2023, then he too is a stud.
But after that...
I like Paddack but I'm guessing he's going to be on an innings limit. I like Ober but not sure he's a guy that is going to pitch more than 150 innings. And Descalfini is a gigantic ?.
Ideally, they somehow find a pitcher to slot in as a #2 or #3 and they can shift Descalfini into a long relief role, which IIRC, is what Seattle envisioned when they traded for him.
With that said, the ideal scenario isn't the realistic one and I won't knock the front office if they go into the season with Lopez, Ryan, Ober, Paddack, and Descalfini. Finding a #2 starter on the trade market, when you have budgetary constraints and when most teams will want a prize prospect (Lee), isn't easy to do.