I don't even know that I'd say poorly coached. In this way, I think Stallings may get a bit of a bad rap. I don't think there's been anything wrong with his general coaching approach, per se. But it's evident to me that we simply need to recruit some much better players.
While I do agree that our biggest problem right now is largely in our roster construction I really also don't think that Stallings is doing a great coaching job either. And it isn't just a question of strategy that he is lacking, like I originally expected from him, but it's really both strategically and tactically that he's letting the team down.
Strategically Stallings has been lapped for years now, we knew that even before we hired him. His one big strategic innovation was a really good one many years ago and is actually the founding principle of modern basketball analytic offensive structures, namely that the two best shots that you can get offensively are three point looks and free throws and that your entire offense should be structured towards that achieving that end. It's a large chunk of the reason why he has such a reputation as an offensive guru. Unfortunately the world keeps on spinning and the game has changed enough so that all of his good ideas in this area have either been adapted into everyone's gameplans these days or, on the other hand, have been largely gameplanned against defensively (at least on the college level where the skill level is lower and the court is more cluttered).
On the tactical level Stallings has actually been much worse than I expected because he is extremely dogmatic in his approach. You can just look at his timeout usage as an example this season because letting a young team try their way out of trouble is literal insanity and has likely cost us at least one game this year. I can't imagine any opposing coach coming into play us and being surprised at what we are offering. Yes, he has moved to more of a zone concept defensively but even that is just passively shifting into a 2-3 for a little to a long while before going back to man after the zone stops working. There are no new offensive sets built on personnel groupings, no changing defenses, no interesting out of bounds action...there's literally nothing but the same things being run into the ground.
The only justification for all of this is that he wants to build familiarity with the basic concepts before introducing more exotic actions, and there is some truth to that approach, but there comes a time when things are bad enough where you need to try something, anything. And nothing in Stallings' resume or performance over the past two seasons leads me to expect that.