I think Hornacek tries to get too smart, tricky, cute sometimes w/ his rotations. Just keep it simple - Don't do anything crazy, ESPECIALLY the 1st 2-3 weeks of the season. After a few weeks, if you see a certain matchup isn't working or one player isn't playing well, then change it up. His style of just throwing random guys out there is just confusing the rhythm of players for no reason.
I don't see why he isn't playing Chandler/Len 100% at the 5 spot ... He is adjusting for no reason. Right now if you total up those 2 minutes per game it comes out to 42 ... When the other team goes small at the 5', who cares? Stick w/ Len or TC. The other night against the Clippers, he subbed Len out because Josh Smith was at the 5'. That right there is not helping anyone's confidence on this team, especially Lens. What's Smith going to do against Len? Jack up 3 pointers - Would the matchup allow the CLips to run the offense through Smith? ... That would be what the Suns would want.
TC playing 35 minutes against DET was also ridiculous. And Len didn't even play fully the other 13 either. The point of having 2 solid centers is that 1 should never have to play over 30 minutes (Unless they're really balling or it's a B2B situation and you're saving 1 of them for the next night). IT'S SIMPLE, but Hornacek tries to be too smart, tricky, cute with it. Also to note, Len typically plays well against other big guys like Drummond (His best games last yr. were against guys like D. Jordan, Marc Gasol, Pekovic, etc ... And he's even bigger than last year) - So the fact Drummond played so much is an argument to play Len even more.
The eye test tells me Len has improved a lot since last year. Stats don't show it fully yet, but again - you can't judge a player when he's averaging like 14 mpg. That's tough to do. Offensively, Len's 1 bad game against Portland has skewed his offensive #'s. But he's either made himself open to ball-handlers or gotten open through a move of his own at a pretty decent rate for a big guy. Len deserves, yes DESERVES, to be playing at least 20 mpg routinely for at least 2-3 weeks. He's in his 3rd year, has improved ... But Hornacek for some reason is F**** Len over w/ his minutes, lol (And he's doing the same thing to Goodwin I might add, who deserves some opportunity too )
The point of the 1st month is to see what you've got, not to adjust minutes around based off matchups ... That should come later if needed