I think you can write off Philbin and Wrench for this season. I am sure they will play, but after their injuries I suspect it will be 2023 before they make any meaningful contribution.
If you then look at our playing group we only have 20 senior players (and that includes Russel). So we will only need 3 injuries before we start to incorporate the Academy players from the last couple of seasons, and clearly we are going to see quite a lot of this group over the year.
So its interesting to pick your preferred 13 +4, but I suspect our prospects will depend to a degree on how well individuals in the Academy group perform and how astute Powell is in bringing them into play. Over the course of the season it may not be how good our rooks and bishops perform but rather the pawns.