As a fan of the Leafs and another team, absolutely not.
Buddy was gifted 4 really good players when he arrived (Matthews, Marner, Nylander, Rielly.. Tavares too if you wanna count that signing) and all he's done is instill a loser culture and fail to bring in proper depth around them. Each year the goaltending got worse and the middle/bottom 6 forwards have consistently been filled with soft "skill" players that you don't win with.
If you want to build a Doug Wilson style perennial loser thats a cap mess, Dubas is your guy. Actually now that I think about it that comparison is unfair to Wilson, his teams could actually win a round or two.