If your management has signed him, then all that Hadley says about Parra's buying policy is true.
The guy appears unfit, unmotivated and plays in a dinner suit each week.
Apart from Riddell who is a sensational signing, your signings are at best very risky, Morrison (injury prone), Tahu (injured all the time) Stringer (doesn't even know if he will be able to play again) Marsh (won't be the same player after a neck injury, they never are) if you add Craigie to that list then your signing a bloke that will have about as much positive impact on the team as signing Wise Kativerata had, ie none!
You have to question your recruitment when you sign a bloke that even the Souths are trying to offload.