It was the lack of what they call today "complimentary football" that was the issue with the Mora-era teams.
Focusing on just the playoff losses from the following two years with Hebert, we see a 10-0 lead blown against the 'Clowns because the offense couldn't help the defense out by padding the lead. The Dome Patrol's weak spot was the secondary. They couldn't hang with the 'Clowns' speed. A year later, an even bigger lead blown (20-7) against the Eagles for pretty much the same reason. The hard-working but pedestrian secondary couldn't hang with the Eagles' playmakers.
We had no such playmakers on offense to counter it with.