Neither Pep, nor Ancelotti, nor Klopp would be able to do anything with the garbage collection of players we have.
Doesn't significantly matter who our manager is until we put the right squad together.
We need players who
1. Work hard and have physical ability to outrun and outwork most other teams. This needs to be non-negotiable attribute. We have collected most players made out of glass who break every other game and cannot be asked to train or run. We compete in EPL, physical ability is a necessity here
2. Do basics reliably - passing, holding ball, pressing
3. We need very few world-class players, at this stage of development. You don't assemble a good team, right after a total rebuild, with star players. It bring too many clashing egos, is too risky, and we don't have money for it anyway. Only City, Barcelona, or Real Madrid can afford to have all-star teams. We need good, reliable players with handful of top talent, not too many. You can see how Solanke is more useful than Rashford.
4. Players who live and breath with football. Social media superstars not welcome in this club
And then you can get any decent manager (at the level of Unai Emery, Ange, or even Thomas Frank) to make a fighting team out of such good squad. That should give us a team that plays attacking style, can reliably make top 4 and will usually progress from Champions League group stage. Only after we achieve that, can we start building a team that can win EPL or UCL.
You cannot go from absolute garbage that we are to winning directly. It's not possible and will not happen