Sure was...and it didn't work.
Look, no one loves Jimmy more than me. But he wasn't infallible. David Shula was mistake #1. Mistake #2 was taking Steve Walsh in the 1989 supplemental draft just because he wanted Aikman to have some competition. The cost? Well, by picking in the first round in the supplemental draft in 1989 meant that Dallas was to forfeit their #1 pick in 1990. That would have been a #1 overall pick folks!
The good news is Dallas got a #1 pick in the Herschel Walker trade (among others), and they used it to select Emmett Smith, somewhere around the 20th pick.