He pulled a big trade trading up for Devin Bush and managing to do so without giving up a 2020 1st, then keeping that 2020 1st he then pulled off the trade for Fitzpatrick.
I don't think it's a stretch at all to say that without Fitzpatrick and Bush, all other things remaining constant, this team is 2-9 while losing by double digit points with wins against the Chargers, Colts, Rams, and Bengals turning into loss. We all know about Fitzpatrick's impact and Bush has also made multiple game-changing plays throughout the year (the strip on Tyler Boyd being one example).