Nah you're right to worry. Normally I'm 100% main ruck in the forward line = sold. McEvoy is better mark, better kick, better mover, and better against Graundy. Ceglar is a better tap ruck against some opponents. If he doesn't main ruck there is every chance he sits out with Patton/Frost arriving. I would strongly urge against an R2 start with the view to swing forward. I also note his R3 match is Grundy, the first match for full price impact. He also comes up against Gawn, Goldy and Nic Nat before the bye. Plenty of risk. Also a chance to buy post buy as his Gawn low score will fully roll through his price. He is firmly on my watch for upgrade list but too much risk for a starting spot for me. That risky F3/4 spot is TJL's for me.
I think that there is also a perception that ruck is a high scoring position, but it’s not really any more.
It looks like only 10 rucks averaged 90+ last year, with only 6 averaging 100.
Admittedly those that scored well tended to be sole rucks, but it’s not a licence to print points like it seemed to be a few years back (maybe due to the ruck scoring changes or perhaps fewer stoppages?), and any risk around sharing the ruck role could mean an R-F doesn’t get to forward keeper level.