Most first-round draft picks on one team

[Evan]

This year's Minnesota Vikings have 15 players on their roster who were drafted in the first round, either by the Vikings or another team. This seems like a lot to me. Any idea if another team has ever had that many first-round picks on their roster all at once?

Here are the Vikings 15 first-rounders:

Picked by other teams: Sam Bradford, Jake Long (both first overall picks), Andre Smith, Terence Newman.
Picked by Minnesota: Trae Waynes, Chad Greenway, Sharrif Floyd, Laquon Treadwell, Xavier Rhodes, Harrison Smith, Adrian Peterson, Cordarrelle Patterson, Teddy Bridgewater, Matt Kalil, Anthony Barr.

Smith and Barr are the only ones of that group to start every game this year.

[Andrew McKillop]

I'm not sure about the record but the 1997 Oakland Raiders had 18 first-round picks on their roster.