About a year ago I found this when looking at top 5 finishes... I would consider a top 5 back a "stud"...
I could dig into my WR profiler information to tease out similar data for WRs, but it would only be top 12 vs 13-24 finishes. But then we are comparing apples to oranges. In the quote above I did not look at top 12 RB finishes, only top 5. I imagine the stats would be different if we looked at top 12. Maybe I will do that in some free time
I imagine we will find that top 12 RBs typically last about 4-5 years, if that in many cases. Gurley is a great example of a guy who just fell off a cliff. Everyone knows that WRs last longer than RBs. However, you need to have a good RB to win in fantasy football... so at some point you have to draft them (going back to the rebuild with WRs, win with RBs strategy). Although, I could argue that I rebuilt with WRs and traded for RBs (Mixon, Zeke, Hunt traded for to go along with Saquon, JT, Dobbins. Maybe that's a better strategy- draft WRs and when you're saturated trade them or picks for RBs...