Well this is their final shot to make a great Predator movie. For something like this they can't just breeze through it, they have to go the whole way. They have to go all out and get the best talent possible.
Predator 2 was made because of the success of the original. In AvP the Predator character piggy-backed on the Alien. AvP:R was made because AvP made just enough money. Now those movies weren't exactly great, hence, this reboot. But if this restart of the franchise sucks, then that's lights out for this series. How do you follow up a bomb that's supposed to reinvigorate the franchise?
Make it great Rodriguez. The only great Predator and the first Predator movie are one and the same.