Interesting question
Besides Marino, Troy Vincent was my favorite in the early-mid 90's. I was sick when he went to the Eagles(also because I despise the Eagles). It was ironic in 1993 that even after Marino went down early in the season with the Achilles, Miami still won. When Vincent when down against Pittsburgh in week 11 or so Miami never won again. And Vincent hurt himself returning a freakin' punt. To me, that ranks as #2 on my list of Shula's late career bonehead calls, to have Vincent on a punt. (#1 being the handoff in the endzone which resulted in a safety in the 1994 season playoff loss at San Diego 22-21- safety the different in that game)
But all that being said I'd pick either Webb or Keith Sims. Need o-line help, we have plenty of CB's.