The work gets done. The clients are mostly happy. The team is capable. But it takes more effort than it should. Decisions get made twice. Senior people hold knowledge that should live somewhere everyone can reach.
You may have already tried the training. The room was energised. Then everyone went back to doing what they have always done, because the training showed them what AI could do, not how it fits the specific way their team works.
The problem is rarely speed or headcount. Introduce AI before you have looked at the process, and the friction just moves somewhere new.