I have no issue with patiently building a good team. There are options other than sitting on your hands doing nothing or signing mediocre free agents to bloated deals, however. DL hasn't been particularly proactive to date.
He did nothing with Al and Sap, he was wrong about the market for Gordo, he overpaid Alec. Hell, his two lottery picks are players he didn't even get in for workouts. They also play the same position...poorly. Sure, things could look better by next year, but it just looks to me like the Jazz are in a worse position to rebuild now than they were when DL took over.