Moses could conceivably make us a top 8 team. We won't win a comp paying him $1.4m a year, but just becoming a competitive team in the finals again would help a lot in terms of long-term success.
Objectively looking at the last two weeks, if you put Moses in the 7 instead of Brooks, we're 2-0. Parra are 0-3 with Moses in the team. It's pretty clear Parra's premiership window has closed with guys like Papali'i and Mahoney moving on and the forwards all getting older.
It may sound crazy, but from a strictly football perspective, I think we're the better move for Moses. However in terms of legacy, being a club legend and off-field sponsorship/opportunities, Parra is probably the wiser decision for Moses. Given he's already made the finals plenty of times and even played in a grand final, there's nothing he's going to achieve here which he hasn't before. So realistically he's just milking every last dollar he can get out of Parra.