With 53+ players and 16+ games its safe to say some generalizations have to happen to make an arguement less than 50 pages long. Instead of the 8% of lower rd rookies to start the season, how about this one:
On average every 2 years there are 3 rookies that become starters for more than half a season. 2/3 of these are the first round picks...That more than half a season is put in there to kind of eliminate rookies that start due to injury. Of course trading high picks for established veterans will skew statistics, but how much? One starter out of every 44(22x2) is a rookie thats not a 1st rounder. Compare that to other successful teams is all I am saying.
Well, let's take a gander, shall we?
Offense:
QB: Brady.... no shot for a rookie there.
OL: Light..... All-Pro, Pro Bowl
C: Koppen.... low round rookie, Pro Bowl
LG: Mankins.... Pro Bowl
RG:Neal... undrafted F.A.
RT: Kaszur.... low round rookie
TE: Graham/Watson, both first round picks
WR: Branch, Givens, two low round picks, 1 Super Bowl MVP
RB: Maroney after Redmond
Defense:
Wilfork, after Washington: 'nuff said
Seymour: 'nuff said
Warren: 'nuff said
Green (just to add the 4th lineman): low round pick
Bruschi: Pro Bowler
Vrabel: Pro Bowler
Thomas: Pro Bowler
Colvin: Free agent who got injured, being replaced now
Samuel: low round pick, pro bowl
Hobbs: low round pick
Sanders: low round pick
Harrison: 2 time pro bowler
That's 11 of the 22 positions (I didn't count Green) that have been well manned by players drafted by New England below round 1, or found as UFAs, during the BB era:
Brady
Light
Koppen
Neal
Kaszur
Branch
Givens
Bruschi
Samuel
Hobbs
Sanders
and that's not even counting double players at the same spot (i.e. Ashworth at right tackle).