All you have to do is look at this season, in which Frank was given a better squad than Ange had last season
Not sure I really see how it's a better squad than last season.
Keepers you went from Vic, Forster, Austin, Whiteman and Kinsky (from January) to Vic, Kinsky and Austin, less depth but not massively important.
CBs we went from Romero, VDV, Dragusin, Davies and Danso(from January) to Romero, VDV, Danso, Davies and Dragusin (who was out until Christmas), not a massive difference there.
Fullbacks we went from Udogie, Spence, Porro and Reguilon to Udogie, Spence and Porro with Souza arriving early Feb, probably weaker there.
CM we had Gray, Bergvall, Sarr, Bentancur & Biss for Gray, Bergvall, Sarr, Bentancur, Palhinha with Biss out until Jan and Gallager joining in Jan so only really stronger from Jan onwards.
Attacking mid we went from Maddison and Kulu to Xavi which has been a disaster if we're being honest.
Wings we went from Johnson, Son, Moore, Werner, Odobert and Tel (from January) to Johnson (until sold in January), Odobert, Kudus, Kolo Muani and Tel. Werner certainly contributed more than RKM so guess that depends on if you rate Kudus above Son but probably a downgrade there.
CF we went from Richy and Solanke to Richy and a Solanke that was out intil January.
Where are people seeing the better squad?