You have pointed out, many times, how it is not easy to make trades in May and June.
We started the 2022 season with Bobby Dee at 1B. While he had a horrific 2021 playoffs, his career OPS, at the time, was .819 (545 PAs is rather significant.) He had also just ended the 2021 season with a 103 game and 345 PA stretch at an .867 OPS (23 HRs & 67 RBI which projects to 43 HRs and 126 RBI over 650 PAs)
It's hard for me to think it was a blunder plan to start 2021, and once the season started, it was not hard to think maybe Dalbec was just off to another slow start and would "heat up" at any minute. When it became clear he was not going to, Casas got hurt.
In 2021, Dalbec started heating up on May 13th. I think giving him until about June 1st, before giving up. Casas was hurt on May 17th. Was someone available to trade for?
Cordero sucked, and Hosmer did nothing to help. Granted, Bloom got the 3rd and 4th string 1B plan wrong. I don't see that as a major blunder, planwise.
The 2023 SS plan was a disaster.