He already is if you go strictly off record, he became the most winningest (most stupidest word ever) coach in franchise history just a few games ago.
Although Flip took us to the playoffs so many years in a row and capped it off with a WCF appearance, is the only Timberwolves coach ever to win a playoff series, and is basically the Timberwolves’ Vince Lombardi so “most successful” might be a tough title for some fans to relinquish
I’ve come to peace with the resolution that it can be both a win and an overpay, it’s not necessarily just one or the other