Galway in theory should be doing better, won 3 All Irelands in the last decade at u 20/21 level and lost another final. Tom Flynn is the only mainstay Galway got from the 2011 team and he was still there 2013 along with Shane Walsh & Comer. Ian Burke & Varley played too that day but you'd hardly call them fixtures in the senior side since. I'm sure Daithi Burke would probably have been but has been lost to the hurlers. So Galway have got a grand total of 3 players from 2 all Ireland winning teams, its a huge let down and its not like either side were huge teams who won through physically dominating their opponents.
Galway have used a lot of players the last 3 years, would be very surprised if any Div 1 side has used more than Galway; Only have to look at the difference between the side that lost to Dublin in 2018 and Mayo in 2019 & 2020.
Like the other posters on here going into 2021 Galway don't have enough top players who've nailed down their place in the team. With any confidence Sean Kelly, John Daly, Shane Walsh & Comer are the only 4 players I can name who will definitely be part of a starting 15 and probably Tom Flynn & Heaney although positionally wise he could be anywhere from corner back to half forward.
I'd give McDaid more time, looked like he was going to be a future All Star back in 2017 but since he came back from Australia he's been riddled with injuries and not played enough football whilst Cooke who was outstanding against Mayo in 2019 is in the States currently. Michael Daly isn't good enough of an athlete to play the way he does and its familiar theme in the Galway team, not enough athletic players. The Corofin lads are all top footballers but don't think any of them have that athletic ability that's required although don't think Molloy hasn't had the chance to put down a marker. The likes of Brannigan is a good athlete but probably not good enough of a footballer to make the starting team if Galway are serious about winning All Irelands. Maybe I'm been a bit harsh but it is clear Galway don't have enough players of athletic ability.
Galway have beaten Mayo the last 5 occasions they've met at 20/21 level yet Mayo have got more out of those teams although that's mainly down to the last 12 months. Given all the success Galway have had at 20/21 they should not be in this position, its a numbers game and Galway should be doing better given they've done the most difficult part of the development.