Norris is out, let's just accept it. Unless Jennings leads the line, which I am curious about but Nigel may have already ruled out, then it has to be 451.
Einstein observed about trying the same failed experiments expecting them to suddenly succeed. From heavier Nevitt, Hemmings, Jolley, Dennis, Saunders and Jolley none have succeeded, the two who have left are playing in better sides but not up top.
A double absence at right back would be an issue, I'd expect Pike to play so the defence picks itself. Aptor right, Hendry, Morris and Walker in the hole with left opening up for Taylor . Then Jenno up top which may work better alone with more supporting from behind.
442 and Dennis scoring only works if you have the personnel and get the ball to the final third. For eighteen months without Norris we rarely have advanced possession.
I'd like to see Turnbull thrown up late on, Yarney coming on and try a 442 then. Not sure it is main tactic though.