For the he lost a step crowd, typically when a player slows down athletically it’s gradual. Diggs’ decline was immediate (and by decline I mean a full season projection of the second half of his season was still 80+ catches for 800+ yards).
I feel this was more:
Offensive changes in-season: His production dipped as soon as Brady took over, so there may have been a change in philosophy.
Defensive adjustments: Davis, Knox, Sherfield, and Hardy scared no one in 2023, so could have the focus really settled on Diggs? The high volume of targets for Shakir may support this.
Injury: He was never on the report, but to assume he had some kind of injury isn’t a stretch. Big Groot was rarely on the report and it was wildly believed and talked about how he had a significant foot injury.
I think it’s in Diggs best interest if we started to spotlight him less, we need to stop having him be a 160 target WR if we want any kind of production from him in the very near future.