Check the numbers for different lineups with Al from last year if you guys think he is playing that much C for next year (and starting Morris who isn't even actually good at PF) and Stevens is playing that much small ball.
http://www.basketball-reference.com/players/h/horfoal01/lineups/2017Most used 5 man rotation with Al:
1st: Al at PF, Amir at C with 432 mins
2nd: Al at PF, Amir at C with 192 mins
3rd: Al at C, Crowder at PF with 134 mins
4th: Al at C, Olynyk at PF (not totally sure the position distinction is seperate when they both played together but whatever) with 103 mins
5th: Al at PF, Amir at C with 97 mins
6th: Al at PF, Amir at C with 95 mins
7th: Al at C, Olynyk at PF with 82 mins
8th: Al at C, Jerebko at PF with 56 mins
9th: Al at C, Jerebko at PF with 52 mins
10th: Al at C, Crowder at PF with 43 mins.
The team is not flipping small ball that hard. Those 800+ minutes aren't going away. I do think the team goes small more often and "small" is a bit different since we can have a guy as big as Hayward or Jaylen Brown playing the 2. And come playoff time a guy like Zizic, who I think plays, probably won't see the floor and even Baynes may not much depending on match ups.
I think it's funny we all together have watched for example Stevens play Zeller more than anyone wants because he likes to play legit Centers in the regular season and some of you guys think he won't play our bigs this year.