Was Newman in doubt for round 1 anyway?
I'd have had Doch, Saad, Weitering, Young and Newman as the locks, with McGovern a lock if fit. Which leaves Marchbank/Cowan/Cincotta/Plowman for that 7th spot, possibly with an 8th spot if the Doch midfield time is to be planned for, would think that both Cowan and Cincotta would be better options for the 8th spot if going that way as they could play other positions, Plowman can't even play the positions he gets picked in and Marchbank hasn't really shown anything elsewhere either.
FWIW Plowman/Marchbank would cover McGovern if he's out most likely.
Newman played every game until season ending surgery last year, didn't really think his spot was up for discussion when factoring on the kids.