Maybe what we've already seen is the worst we'll ever see from him and he'll go on to be an all time great, or maybe this is as good as it will ever be with him. None of us know and pretending otherwise is pure foolishness.
What we can honestly and legitimately do right now, is talk about where he is right now, based on what we've seen so far. I don't think there's anything wrong with being honest and saying right now he's in over his head (it's just the truth) but giving him more time to see if the game slows down for him so to speak and things start to click.
One example I'll give of something I've observed is how he reacts when something goes wrong. When you watch other experienced high level coaches, the vast majority of the time when something goes wrong they are the first one to see it and already have a corrective action/method in mind before the dust of the play has even settled. They know immediately who missed what assignment, who loafed, who needs to be put in or pulled out, if it's a situation where they need to be in a players face and B-line straight for them, or know exactly what they want the assistant on the headset or in front of them to change, like right now. There is no hesitation in them thinking about what they should do, it's they see it and then react to it right now, based on their years of experience combined with level of coaching ability.
When something goes wrong for us and they show Coach Freeman, you can see the gears turning as he's still trying to figure out what even happened and then pondering or even asking assistants what they should do...recommendations I'm sure, with him making final call, but still. Not that it's never ok to get recommendations from assistants during a game (during timeouts or other lulls in action I would expect this) but in large recommendations from assistants should come during the week, during the game (most of the time) the HC (Field General) should be observing, knowing exactly what he's seeing on the spot and issuing timely, clear and concise orders, not standing there trying to find out what even happened and wondering what he should do about it.
I could be wrong, but that is a major problem I believe I see occuring.