Even if all of that is true he is airing it out publicly? There is no way for that type of public shaming to not look like he is just trying to protect himself or he can't control himself. Its a Harlan type moment.
Also the buck stops with him right? He hired and recruited everyone. If you don't like who you have than you did a terrible job knowing what you needed. Its on you. It sounds like he is admitting that he is bad at his job.