Brad Stevens weighs in on starting lineup with Marcus Smart out

With Marcus Smart out four-to-six weeks with a left oblique tear, Celtics coach Brad Stevens is keeping it close to the vest on who he will insert into the starting lineup in place of Smart.

While Stevens said he has an idea on who he is going to give the starting nod to, he isn’t ruling anyone out as the Celtics prepare for their first-round series of the NBA playoffs against the Indiana Pacers, which starts Sunday at 1 p.m.

“I think it’s somewhere down to 11 guys,” Stevens joked.

Stevens added: “I got an idea, but I’m going to see how the next couple of days play themselves out, too. We got two more days of practice, we’ll see. And starting isn’t that important to me, how we rotate is…