Whoa, Sega has gone through more restructuration plans these last years than <insert a reference to something that had a lot of iterations. e.g. Street Fighter II. But try to use a more original example>
Anyway, seeing Naka gaining more and more decisional power, over thoses internal restructurations, is a very good thing.
And when I say good, I mean BAD!
The last good game Yuji Naka produced was PSO, all the rest went downhill from the Genesis/Saturn days. His luck comes from the fact that his games, often, sells quite well.
Well... At least Yu Suzuki and Nagoshi still have theirs own teams... Suzuki is working on Shenmue Online, though...