Actually I did some checking, and it seems that sines 1970 40 different QBs have started Super bowls. 20 of those were 1st rounders. As far as I can see that means that 50% of all SB QBs were not drafted in the first round. Then there is still the fact that Geno had a fairly high first round grade on our board, and on many others.
My conclusion is that anyone that thinks Geno will not be good because of his draft position is a Dummie.