In case people want to know what you're talking about, that was in 2014. http://www.cbssports.com/nba/news/suns-pj-tucker-suspended-3-games-for-super-extreme-dui/ Not his finest moment, but I haven't found evidence of repeated trouble in this regard.
Of course he's leaning towards staying. He was ready to sign a 4 year max here before Morey and the Clips figured out a way to make this mutually beneficial. Barring a catastrophe, CP3 should be here for years.
Not exciting, but always good to add some defense. He seems like he can at least hold his own when shooting from the perimeter as well.
We KNOW we can score points. Our issue has always been defense. We sign a solid defender on a good deal and all I see are stats about his shooting. He's not here to score a lot of points or stretch the defense, he's here to help us keep a lead for a change.
Ariza is not going anywhere. He's close with Harden and CP3 and he is a valuable defender to throw at guys like KD, Klay, Kawhi, etc.