Don't see any parallel between Taggart and Manning.
Prior to FSU, Taggart had been a head coach for 8 seasons at 3 different programs, with a winning record in his final season at each stop. Also, it takes longer to build a football program back than a basketball program given the amount of players on a football roster. The only players on the FSU roster that Taggart had a full recruiting cycle with are the true freshman, and even the best true freshman in football aren't difference makers right away. By way of example, Dave Clawson was 5-16 21 games into his football coaching career at WF. Maybe Taggart would've been a massive failure at FSU, but he was never given a chance to coach his players at all. Among the reasons Jimbo Fisher got out was that FSU's talent had slipped. FSU had 2 players drafted last year. That tied for the fewest in a decade for FSU. From 2013 to 2015, FSU had 12, 7, 11 players drafted; the Noles had backups that were drafted. Taggart would've won 10+ games with that talent too. The uniforms were the same, but Jimbo had checked out as a recruiter a few years before he left.
Essentially, for the last 4 seasons (including the current one), Manning has coached players that he recruited and developed (or failed to develop). Manning has been given a full opportunity to demonstrate his coaching chops. If there had been an inkling of progress over the past two seasons or even evidence of a gritty team that fought for 40 minutes, there at least would be an arguable defense that the program had hope. Right now, there is no hope.
FSU never gave Taggart a chance and fired him. WF gave Manning every chance in the world, and he is still here.