Start by picking a side with more grunt up front like I suggested earlier on this thread. Then when you do get Boof and Payton back you have the problem of who out of Lima, Small, and Gibbs do you drop to make way for them. Or perhaps (and as a far better long term result) they are all playing so damn good that guys like Graham, O'Neill and who knows maybe even Skando himself are the ones playing to stay in Firsts.
The point is you don't know if these guys are going to cut it until you actually give them a go. Sheens chucked Brycey in the deep end and so far he's swimming OK. We already know that Patto treads water at best. With the injuries and poor play there is no excuse for not giving guys like Lima and Small a shot too. It's not like you've got anything to lose. All of the best props in the comp were once youngsters battling away in the lower grades. Some not so long ago.
And don't give me the old playing them too soon will ruin them chestnut. 1. Sheens himself doesn't believe it or else every player he calls up wouldn't still be eligible for Flegg and 2. I reckon it only ruins the ones who were never going to make it anyhow. For the good ones it just accellerates their development. Surely accellerating the development of good young players should be the no 1 priority of the Tigers.
If your best (fully fit) pack starts to look more like;
Locks (Satts, Halatau, Harrison, Fulton)
2nd Row (Laffranchi, Gibbs, Small, O'Neill, Graham)
Props (Skandalis, Payton, Lima)
Hookers (Farah, Fitz, Senter)
Then you should really be able to compete. But you still need to turn up some more Props.