Going off when we played a similar system under Dyche - that ‘10’ role was utilised by Jeff Hendrick and it’s not a traditional sort of role there; it was more for a tactically astute, physical, athletic player that can be on a second ball and press/tackle the opposing holding midfielder/centre halves
I don’t think Dyche will feel that Iwobi is the sort of player that can ‘get into them’ for want of a better term.
His big ethos is winning the ball in good areas of the pitch and to transition quickly- that’s what we did when we were at our best with him and with Dom in the side and the rest back you’ll have more of a platform to build off.
Just found the article that described this sort of role - good read:
Jeff Hendrick’s role for Burnley is not immediately obvious. On closer viewing, it’s unique. He’s the Irish trequartista.
www.football365.com