If you're well organised and have confidence you don't need vast quality.
We have Krejci, Andre, Gomes and JSL who are all clearly quality players, Bueno has shown he can play at this level, and Agba has in the past (for what it is worth i dont think Agba comes back to form)
That's a very good spine, if we can keep SJ seemingly looking better and stop chopping and changing the FBs/WBs we have a decent shape.
Of course, whether VP can do that i don't know, but an average manager who comes in would be able to.
It's creating chances that worries me the most, and I don't see how that changes aside from getting Tolu and JSL playing together and going full route one and set pieces mode - which is far from a sure route.
In terms of average sides in the past who have stayed up, us, Forest (x 2), Brentford 23/24, West Ham, Villa, Burnley
And then you have Wilder's Sheff United team who caught everyone off guard with their tactics, how many of that squad are still even playing in the Prem? 2? 3?
Of course it's possible, whether we do it or not is another question obviously.