The 2018 Eastern Conference Finals begin shortly, and the Celtics are making a starting lineup change, moving useful role-playing Aron Baynes to the bench and starting Marcus Morris.

While Baynes is more of a center, Morris is clearly a forward. The move, we speculate, is to allow Morris to help guard LeBron James, either fully or as a help defender alongside rookie Jayson Tatum. If we had to guess, Morris will likely guard James. And then Tatum shifting to him when Morris sits.

We’ll soon find out. Game 1 starts at 3:30pm ET on ABC television.