I just looked up the receiving yardage leaders (best four players) on the Top 8 seeds in last year's playoffs. In some instances, this included one TE (and three WRs) instead of four WRs. That's 32 players (4x8 = 32). Do you know how many were 1st Round picks? Five. That's 16%. If you look at just the best two on each team? It's Four - 25%. Now, let's look at QBs on those same teams. 75% were 1st Round picks (Brady and Prescott were not). Now let's look at the sack leaders (best four players) on those same teams. Eleven. That's 34%. Starting cornerbacks on those same teams? Four out of sixteen - 25% Starting offensive tackles on those same teams? Five, but it's six if you count La'el Collins (who was the #1 rated tackle until a week before the draft when he became a murder suspect of his ex-girlfriend, and went undrafted). 38% To put it another way, Super Bowl contenders are more likely to have first round defensive linemen and offensive tackles, than they are to have first round receivers and cornerbacks. And they will almost always have a first round QB.