No I wouldn't want Mayfield over Carr. Why would I want a QB who loses to a banged up 49ers team, a Cowboys team that was not good(you think getting swept by the Eagles is good? Playoff Cowboys never let that happen), and the Falcons. TWICE. Mayfield has all that talent on his team and still the Bucs only benefit from a bad division. We saw what Carr did with a healthy roster.
Outside of the 3-1 start, Mayfield's wins were against us, Giants, Panthers, Raiders, Chargers(haven't beaten good teams). I mean those are impressive wins. We should be be familiar with this.