I continue to believe it is much more poor development, coaching & roster management than poor drafting by Hextall.
The vast majority of real talent we have came from Hextall's regime: Hart, Konecny, Provorov, Sanheim, Cates, Ersson, Farabee, Frost etc.
The only players I can think of we got from Fletch are York & Tippett who have shown growth this season. We'll see if Gauthier is a stud or not.
The problem is they were either rushed to the NHL level, mismanaged when they got to the NHL, surrounded by mediocre talent or shifted around so much they never were able to establish a consistent role.
Hart has been the most consistent, but he was rushed to the NHL level and then left to fend for himself playing in front of crap teams for most of his tenure. Konecny & Provorov have been the next most consistent, but have had their roles and linemate/d pairings change almost every year. Sanheim was pretty consistent until this year when he has struggled playing on a horrible roster and under Torts.
Farabee had one strong year in the NHL, but has faded since due to many of the same issues and injuries. Cates and Ersson are doing well this season and may be salvageable.
I would say Patrick & Frost were the two players that never have developed and may have been draft misses although Patrick was a complete consensus talent that many expected to go #1 that year. I think the Flyers failed him and had bad luck with injuries. Frost, OTOH, I think was probably a bad pick who has never been able to elevate his level.
We also do need to accept the reality that injuries have helped derail this organization under both Hextall and Fletch unfortunately. If we had Couturier, Ellis, Atkinson et al. we may have seen better development and performance from some of these young guys.