Ten takeaways from Boston’s preseason opener

1. The Celtics are back. Life is good.

We survived. Despite this being the shortest offseason possible with a Finals victory, Summer League and Olympic appearances, this Celtics hiatus still felt far too long. The champs have returned though, and all is right in the world again.

It wasn’t their finest performance by any means. There was your standard preseason sloppiness combined with something that resembled a bricklaying competition. Regardless, I enjoyed every moment of it.

2. Kornet is the starter, but Tillman brought some juice.

With Kristaps Porzingis sidelined, and Al Horford taking the day off, it was Luke Kornet that got the nod as the starting center. He joined Jrue Holiday, Derrick…