Since the personnel decisions have been more about Garrett and Stephen, and less about Jerry making WILD MOVES YEEEE HAWWWW the roster building has been very good overall. They need more defense, but it's very fixable, the offense is loaded, and they had huge hits at QB and RB to set them up long term. They don't have tons of cap space sunk in 30+ dead vets (other than Romo, which was basically unavoidable and nobody faults them for.) They don't give away draft picks to trade for big names that turn out to be trash players. That whole side of the equation is good, and Garrett deserves some credit for that.
Garrett will always be a mediocre gameday coach. He's basically on Andy Reid's tier, except his QBs can at least run a hurry-up offense sometimes. I can see him winning a title if they build a great team that gets hot at the right time, but I can't see him leading a multi-title dynasty team.