Green to Manly is probably the best signing we've made in recent years.
In this day and age no team will win a premiership or even be true contenders with only one good half. I mean, just look at how the Cows were before Morgan came along. As great a player as he is even Thurston couldn't get it done all on his own and the same is true for DCE.
DCE's best games this year, and coincidentally Manly's best games, have been when he has actually had a good 5/8 (Killer) playing alongside of him. When Cherry has had to be the lone play maker (i.e. with Walker at pivot), Manly have been easy to shut down because opposition teams know he is going to get the ball most times. Want proof? Go and watch a replay of last nights loss to doesn't-matta. They were all over Cherry last night and really didn't care too much about Walker.
I will add that a good half also needs quality service from dummy half and that is not going to happen with Api. Parcell yes, but not Api.