I believe the biggest difference from the last few years, regardless of player signings will be the quality of coaching - it wont have to be great to be significantly better which will improve the skill and fitness levels of all players.
Given that so many players are off contract at end of 2021, - squad potential for 2022 is looking good.
Halves pairing of Flanagan n Burton in 2021 if it happens, even just for kicking games would make a lot of difference.
ps - Wakeham may go ok as a 9 - good passing game but he is not a centre - his biggest weakness is his running game - quick between the ears, running not so much!