And Goff was a 4 year ~4000+ QB and 2 probowl appearances before as well.. also being former #1 is meaningless.. a good number of QBs turn into busts so where they where drafted has nothing to do with my point.
But Fitzpatrick had his best Yards per game, TD per game, 2nd best com%, Highest Rating under Monken. Now that was only 8 games, so maybe his stats could of came down a bit in a full season, but regardless Monken has a proven track record of working with different skillset QBs, while BJ does not. Again more of a risk with BJ like I said