Derek Fisher is officially the new coach of the New York Knicks. Phil Jackson wanted someone he's familiar with, and Fisher has been his main man on the court through 5 titles with the LA Lakers.

SI.com's Ben Golliver has analyzed the Knicks situation and gives his assessment on whether it's a good hire.

"Ben Golliver: Good hire. I advocated for Fisher to the Knicks last month. Tapping Fisher accomplishes one critical goal for the organization: an alignment of principles between the basketball operations department (Phil Jackson) and the coaching staff. It's incredibly difficult to achieve true success in the NBA without such alignment, even if you're blessed with a good roster. The Knicks have a horrible roster at this point, so making sure Jackson and his coaching pick will be on the same page when it comes to personnel is an absolute must. Fisher represents this principle to a tee: he's played for Jackson, he's played in Jackson's system, he's won championships with Jackson and he's maintained a relationship with Jackson. These guys should hit the ground running together."

As he illustrates, even if the Zen Master is not the actual coach, everything revolves around his system. The better the relationship between Phil and the coach, the more cohesive the Knicks will be.

The other big question: Does Fisher help/hurt New York's chances to keep Carmelo?

"Golliver: Helps. I'm not sure that it helps a ton, but Fisher's hire proves that Jackson meant what he said during his opening press conference about establishing a certain type of culture, and it shows that Jackson has the ability to make a deal. The first piece of that wasn't hugely in question, but it was going to remain an unknown until Jackson made his first real move. The second piece was certainly in question after the Kerr dalliance. It might be going too far to say that this hire counts as a 'reassurance' for Anthony of Jackson's abilities as a first-time president, but Fisher's arrival doesn't hurt. At the very least, it sets a course for the franchise, and Anthony can now decide whether he wants in or out."

It is now crystal clear that Phil is in control. With Fisher, Carmelo will know what he's dealing with. The ball is in his court now, and the Zen Master will bravely lead the Knicks with or without him.