Sorry, but I think you are extremely optimistic to think that the addition of RTS could lead to a title. Firstly, he is just one excellent player (admittedly in a key position) and one class player does not transform a whole side. There are big question marks about the remainder of the Tigers spine, specifically in the half and five eighth positions and there is no guarantee that all the new signings will gel or perform to their potential. The other thing is that RTS is going to want a lot of money because he was an elite player for a long time in the NRL, he is edging closer to retirement and he is being asked to move to the wooden spooners. To be honest, I can see this potential move going badly if we add another 4 year contract on big dollars. 2 or 3 years with an option in our favour on 1 mil a year would be ok, but, even then, I can see Roger going down with injuries. Signing either Moses or RTS on huge money could drag us down for years. Different matter if they were both 25.
Of the two, I think I'd prefer Roger because of his high level of professionalism, consistent effort and ability to lead by example.