Right, which prospects have accelerated growth, vs. normal growth, vs. slow growth, would be random. And it could change if a minor leaguer is traded.
Consider this possibility, and answer this. If this were a typical draft, would owners get more excited about the draft?
1st round pick. SS/3B. Current (on draft day) 55/Projected 82. Two years after draft, he's at 61 OVR and looks like a bust. You trade him in a package, because while his glove hasn't developed, his bat might still be solid enough for the majors. With new team, he gets accelerated bump, and while he may never be a major-league SS or 3B, after third year he looks like he could handle COF with above-average bat.
supplemental 1st round pick. SP. Current (on draft day) 55/Projected 79. Two years after draft, has seen accelerated growth to 77 OVR. Projects to be in major-league rotation coming out of spring training in third pro season.
2rd round pick. RP. Current (on draft day) 49/Projected 74. Two years after draft, he's a bust. Hasn't grown much, and other teams don't want him via trade because he's way off his projected splits and pitch quality.
3th round pick. RP. Current (on draft day) 47/Projected 73. Two years after draft, growth is solid except vL. He looked like a possible CL or Setup A on draft day, but now he looks like a real nice RHS. Could be in majors sometime in third pro year.
4th round pick. SS. Current (on draft day) 49/Projected 73. Two years after draft, his D is solid, but his bat hasn't developed. Looks more like a 25th man/defensive replacement than an everyday player. Could eventually make majors, but could top out at AAA.
5th round pick, RP. Current (on draft day) 51/Projected 68. Two years after draft, has seen accelerated growth to 64 OVR. Should be in majors as solid setup man in 3rd pro year.
6th round pick, 1B/LF. Current (on draft day) 44/Projected 71. Two years after draft, he's a bust. Never had much D, and bat hasn't developed much at all.
7th round pick, SP. Current (on draft day) 43/Projected 70. Two years after draft, has shown solid growth. At worst will be spot starter/long reliever, but probably would be good trade bait to a rebuilding team in need of a young #4/#5 SP. Should be in majors after 4th or 5th pro year.
8th round pick, RF. Current (on draft day) 48/Projected 68. Two years after draft, has shown solid growth. At worst, he's a very good 4th OF, but could be a starter on many teams. Should be in majors after 4th pro year.
Overall, 9 draft picks. Two accelerated growth, three growing as scheduled, one who is a borderline prospect and three busts.
But it's not just that the 1st rounder is a stud, the supplemental and 2nd rounders are ok major league prospects, and everyone else looks to be minor leaguers. To me, the above scenario would make for a better drafting experience. It would benefit owners who spend the money on scouting, who take the time to rank a lot of players, who put money into training and minor-league coaching, and who have some savvy with regard to trading minor leaguers -- either for other minor leaguers or in packages for major leaguers.