This year, Cardinals are 6th in fWAR for RF (top 5th of the league), and 19th for LF - but that's mainly because Noot was hurt for the start of the season, they're 7th in LF fWAR since he came back. Those are not holes, those are strengths of the team.Noot is on 1 year $5M contract so its not bad.
However this team even if it makes the playoff is not going anywhere due to lack of pitching. If Noot is playing like a 4.0 WAR outfielder teams will be happy to send decent prospect to get immediate help. Holding on to Noot just to have him revert to his 5 year average or worse get injured again is not part of rebuild plan. We have major holes at catcher, 3rd base LF and RF plus weak pitching staff.
Trade Dustin, Jo Jo. Riley and Noot at deadline or earlier.
Catcher is not a weakness this year or next if Herrara can catch half the time. Crooks crushed the ball in AAA this year, he's a top 100 prospect for a reason and needs a runway in the MLB. Oh and Rainiel Rodriguez is going to be a top 10 prospect after this season.
You got 3rd base and pitching staff right. That's where resources need invested for 2027, not the other spots.