Ricky Roma
The Catch
True. Walsh had a losing record the 2 years before Montana was named the starter. I believe the first year Montana was named the starter from day one they won the SB.
Montana as a starter in 1980 was 2-5. The following year, when Montana started the whole season, and SF won the Super Bowl? They replace 3/4 of their secondary - adding Pro Bowl/HOF-type guys like Ronnie Lott, Carlton Williamson and Eric Wright. They traded for HOF'er Fred Dean. They got Jack 'Hacksaw' Reynolds. They inserted Dwaine Board into the starting lineup.
SF isn't having a winning record, let alone make the playoffs/win the SB if the rest of those changes don't occur. The QB in that era simply doesn't make up anywhere near the difference that it does in today's game.