A lot of Yzerman's success in Tampa can be attributed to the fact that they hit a couple of home run picks outside the 1st round. Drafting guys like Point, Kucherov and even Cirelli outside the 1st would give any franchise a huge competitive advantage. Even if you look at non-Yzerman GM years they had non first round picks like Palat and Killorn be important pieces for them.
Looking at Detroit's draft history between 2019 and 2020, I don't think that anyone of the non first round picks even have the ceiling of a Killorn or a Palat, let alone the Kucherov's or the Point's of this world. It might be too early to write off the more recent drafts but I do think that something that Yzerman got way too much credit for was the Lightning's ability to draft really good players outside the 1st round for a short period of time.
I don't think that the 'Yzerplan' is a failure or that Yzerman is a bad GM because of this, but I do think that GM's get way too much credit/blame for drafting outside the 1st round. Considering that much of Yzerman's reputation is owed to the picks of Kucherov and Point in the first place should maybe have us question how much of his reputation was 'earned' in the first place.