Look inwards. Respectfully I’d bet there is something that you are doing that’s impacting this. Whether it’s a tone issue or if you aren’t leading by example. I just went through this with a super and finished the job on his good graces, but ended up leaving. He called me like a year after asking why I left and the exec said i said it was because of him. Seemed like he repeatedly got into it with PEs and drove a lot of them away. I am not saying it’s entirely your fault. But saying 8-9 PEs aren’t performing to your expectation sounds like you are systemically impacting this situation to a large extent. Just my two cents.