Of course we are better with Mike on the floor, there is no doubt. He is a top-tier player, near-all-star, and plays a role that is important for us.
None of this means he was the best acquisition nor the best fit nor what we really needed. None of this means we didn't overpay for the privilege of having the smallest defensively-challenged back-court in the NBA. We should have had a different target, as good and as likeable as Mike is. He just isn't what we needed. Swap Mike for, idk Brown or Grant, or even Brogdon and add an adequate PG and we would be well ahead of where we are now.