How many years have we been needing a corner?

About 40 plus years.

Can't argue with that! Even in the glory days of the Dome Patrol I used to sit with my head in my hands if the opposing QB actually got the ball in the air.

Last really decent tandem we had was probably Johnnie Poe and Dave Waymer pack in the early 80s, and even then Poe was a bit of a chancer you couldn't totally rely on.