Might perhaps spend some of the year as relief ruckman backing up the Hamster in the magoos? Wouldn't surprise if Griffiths spends a fair bit of time continuing to develop as a ruck / utility kpp. leaving Vickery to continue mainly developing as chf.
Maric first ruck, resting mainly bench or occasional forward.
Griffiths second ruck, floating high forward or deep defence, got the pace, mobility, decision making n marking attributes for all aspects.
Vickery CHF with perhaps rare forays into the ruck just to switch things at times.
Hamster as magoos ruck, first emergency if Maric cops an injury.
Tiger Beanie to develop into a similar role as Griffiths at magoos level. Mainly forward, some ruck n perhaps some defensive hole filling.
Two years time if the big Eevan is nearly ready to be parked Griff would be ready to take the mantle ably backed by a rising Beanie. Obviously a big call but similar in structure to a Cox - NicNat pairing that Wet Coke used. Be bloody nice if we could build it.