That's not money they have to play with. Like Pal said I believe, for this season they are about 10M from the LT. Thats what they have to play around with. Just because Napoli signed for less doesn't mean they now go out and give the rest to someone else. There's no one worth giving that money to.
But because of the deal, they will likely have more to play around with next off season then the did originally.
The team how it stands is pretty much what they will go with imo. A couple minor league signings(Jurrjens I'm hoping) and maybe a Salty trade and that about wraps it up for now.