Sure. Except they have to get to the nhl. Hence the reason we have drafts and 372 scouts per team and central scouting and all that.
If none of that means anything, eliminate all but first and second rounds of the draft. As long as it does mean something the Bruins, Sharks and Hawks of the league will keep on a continuous rebuild of plug-and-play talent while teams like Edmonton, Florida, and NYI will keep languishing in the dark looking for that "fountain of youth". There's no secret to it-- you get the best scouts you can, you treat each pick like it's gold and don't piss away high picks for predictably less useful players like Moroz and Abney. You streamline the system to exploit bad or impatient GMs to procure young talent on the one hand, while you come up with an equation to eliminate inefficiencies in drafting. (Like every time a scout says "clutch" or "grit" in his plus arrows of a player, you never rely on that scout for useful info again, and you knock that player down a peg from what his ranking was). Prendergast found a lot of useful later round talent and I thought MacGregor was an upgrade early on. But I'm not sure anymore. Very very few players have made it from his draft classes and virtually zero outliers have-- those are bad arrows.
Here is the problem I have with your claim...If you go back to the 2008 draft which is the first that MacGregor ran how have the three teams you mention actually done with respect to guys playing in the NHL for their team?
Boston...Here are their drafted guys who have played for them in the NHL.
Dougie Hamilton (#9 in 2011) D 67gp 23pts
Tyler Seguin (#2 in 2010) F 203gp 121pts (NO longer a Bruin)
Jordan Caron (#25 in 2009)F 99gp 26 pts
Lane MacDermid (#112 in 2009)F 5gp 0pts (No longer a Bruin)
Maxime Sauve (#47 in 2008) F 1gp 0pts
Jamie Arniel (#97 in 2008) F 1 gp 0 pts
San Jose...Here are their drafted guys who have played for them in the NHL.
Tomas Hertl (#17 in 2012) F 26gp 21 pts
Mathtew Nieto (#47 in 2011) F 19gp 6pts
Freddie Hamilton (#129 in 2010) F 4gp 0pts
Tommy Wingels (#177 in 2008) F 106gp 39pts
Jason Demers (#186 in 2008) D 229gp 71 pts
Chicago...Here are their drafted guys who have played for them in the NHL.
Brandon Saad (#43 in 2011) F 76gp 45pts
Andrew Shaw (#139 in 2011) F 113gp 54pts
Joakim Nordstrom (#90 in 2010)F 8gp 1pt
Dylan Olsen (#28 in 2009) D 31gp 2pts
Brandon Pirri (#59 in 2009) F 30gp 13pts
Markus Kruger (#149 in 2009) F 153gp 60pts
Shawn Lalonde (#68 in 2008) D 1gp 0pts (No longer with the team)
Ben Smith (#169 in 2008) D 47go 13 pts
Edmonton...
Nail Yakupov (#1 in 2012) F 73gp 40 pts
Ryan Nugent Hopkins (#1 in 2011) F 127gp 97pts
Taylor Hall (#1 in 2010) F 191gp 164pts
Tyler Pitlick (#31 in 2010) F 3gp 1pts
Magnus Paajarvi (#10 in 2009) 163gp 58pts
Anton Lander (#40 in 2009) F 68gp 7 pts
Jordan Eberle (#22 in 2008) F 222gp 179pts
Johan Motin (#103 in 2008) D 1gp 0 pts
Philippe Cornet (#133 in 2008) F 2gp 1pts
Teemu Hartikainen (#163 in 2008) 52gp 13 points
Please tell me how the Bruins, Sharks and Hawks have done so much better than the Oilers is making their team better. And yes I know it is easy to draft #1, but where is the equivalent of Jordan Eberle at #22. So far only Hertl has looked like he might be as good.