Are they actually boom or bust however? If you look at the most successful picks of the second and third rounds you have:
• Rob Gronkowski: the best tight end in the NFL when healthy but most tight ends are drafted in the second round or later historically, at the time Gronkowski was drafted 42nd overall only 6 tight ends had been drafted higher in the previous decade by a team. So hitting on a tight end in the second round is it really a boom?
• Sebastian Vollmer: one of the better right tackles in the NFL and although many considered him a reach because he was an unknown smaller school player is it really a boom to find an upper echelon right tackle in the second round of a draft?
• Brandon Spikes: a very good run stopping middle linebacker, once again though middle linebacker is generally the type of position you see taken in the second and third rounds of the draft.
• Shane Vereen: we’ve all been happy with Vereen but in hindsight has he really given us that much for a second round running back? When you look at players like Ryan Rice (second), Maurice Jones-Drew (second, LeSean McCoy (second), Jamaal Charles (third), Frank Gore (third), Alfred Morris (sixth) and Arian Foster (UDFA) can you really see a boom in a player like Vereen.
In my opinion if he attempting to grab as many lottery tickets as possible and receive these boom players then he isn’t succeeding at all, he is hitting on players and positions that are generally taken in the second round of the NFL draft.
Brady, Dennard and (before he made a BOOM) Hernandez were boom picks none of the players taken in the second may me say - oh wow I cannot believe he found that tight end or right tackle in the second round. Honestly so much of our team is built on UDFA that is where Belichick truly shines, if he could ever find a way to draft adequately in the second and third he would have a pro bowl roster.
Re: the bolded section: most players at
every position are drafted after the first round. I assume that what you meant is that it's rare to see even the elite TE prospects taken before the second round, but even that's simply untrue.
Since 2000, the following TEs have been taken in the first round:
2000:
Bubba Franks, #14 overall
Anthoy Becht, #27 overall
2001:
Todd Heap, #31 overall
2002:
Jeremy Shockey, #14 overall
Daniel Graham, #21 overall
Jerramy Stevens, #28 overall
2003:
Dallas Clark, #24 overall
2004:
Kellen Winslow, #6 overall
Ben Watson, #32 overall
2005:
Heath Miller, #30 overall
2006:
Vernon Davis, #6 overall
Marcedes Lewis, #28 overall
2007:
Greg Olsen, #31 overall
2008:
Dustin Keller, #30 overall
2009:
Brandon Pettigrew, #20 overall
2010 (Gronk's draft class):
Jermaine Gresham, #21 overall
So every single draft between 2000 and Gronk's class in 2010 had at least one TE taken in the first round, with TEs going as high as #6 overall on multiple occasions. This is without a doubt where Gronk would have gone if he did not have injury concerns. So yes, to get him at #42 is an absolute home run.
The fact that every team in the NFL would trade at least 2-3 second rounders to get him supports that point.