Roland Kavner from the mothership wrote: "... it almost makes more sense to think of (Lawrence) as a late first-rounder."
EXACTLY! Going by the Walter Football draft value chart, the Cowboys picks at 47 and 78 were worth 430 and 200 points respectively, for a total of 630 points, a value equivalent to a pick somewhere between the 29th (640) and the 30th (620) pick in the 1st round. If the Cowboys had a late first round grade on Lawrence, that is about where they believed he should've gone.
By that reasoning, he would've been a bargain at pick number 34 (560 points), but since the Cowboys had to pay a premium to move up to that spot, they had to make up the difference between a late first and an early second, about 70 points. Looking at it that way, you could say that the Cowboys were simply willing to pay retail for a player they valued as a first rounder, instead of staying put and taking a player they liked less, but could get at a discounted price.
It's too early to say that the Cowboys "overpaid" for Lawrence, but we CAN say that they paid a first round price for a guy they took in the second round, because they had him rated higher than where they drafted him. If it turns out the Cowboys' evaluation of Lawrence was accurate, and he performs like a first round player, then the team can justify giving up the third round pick to move up to get him. However, if Lawrence only delivers like a second rounder, than the Cowboys will need to re-examine why they overrated the player, which led them to overpay for him.