Frederick has done a Highmore.
Don't think Murray (Ade) or (Murphy) are viable replacements for Chapman for me. They'd be in D6, with D7 being Mansell, and D8 Highmore.
Mansell is already a slow-burn rookie that is in danger of getting dropped any time soon. Murray and Murphy look like slow-burn 40-60s types...will be hard to off-load them, upgrade them or move them to bench unless there is an unexpected spike game, or unless Highmore gets named.
Attractive point with both are the R14 byes...if they get an extended run through the byes then their 40-60 scores would be invaluable in R12-13.
Might just loop Mansell tonight and hope for a good score, and re-evaluate Chapman's replacement next week. Might just go straight to a fallen premo for D6.