You keep a list of games Tony "lost" due to his decision making. You clearly think if Tony had made what you think are "correct moves", the Sox would win those games. It seems pretty obvious that you think you would make better in-game decisions than Tony. Also...
https://www.mlb.com/news/mariners-among-best-in-history-in-1-run-games-c280909432
The 2018 Astros were 6-12 in 1 game games when this article was written. That team won 103 games.
By your logic, AJ Hinch = bad, and they probably win 110 games with a good manager.