I would have thought if Naismith is fit, then he rucks and Mclean is competing against Sinclair for a forward role. McInerney was replaced by Robbie Fox, just doesn't look that way given how Swans did the late change.
Swans may have felt they were too tall last week and decided not to replace Brand like for like (Fox playing more back) and go taller in fwd line.
I may be biased.......