On the one hand one can certainly see how bringing one of these guys off the bench might work. As has been pointed out multiple times big time players like McHale and Hondo did it. At the same time I think it is also true that Brad has already shown his interest in the starting lineup of Irving, Brown, Tatum, Hayward, and Horford. Now that Tatum and Brown have shown how good they are, why would they be less likely to start? If Hayward is not 100% then I could see him starting on the bench with limited minutes, but if he's at or near 100% he is arguably the best player on the team, and at least the second best. While that lineup could face some match up problems, I don't think it would occur all too often. And any team that did have a big lineup would be totally unable to guard the Celts.