Boston Celtics head coach Brad Stevens is just as concerned with his team's woes as any of his players, noting the strange shadow that looms among them after losing five of their last six games, most recently a 115-104 loss to the Houston Rockets on Sunday, which he claimed the team lost by the third quarter.

Stevens was still struggling to diagnose his team's problem after the game.

“It could be any number of things, but we have to play better,” said Stevens, according to ESPN's Tim Bontemps. “Individually and collectively, we have to play better.”

“You know, obviously, we'll look at everything. We've been looking at everything after every game. Every night when you go to bed, every minute when you wake up, you're always thinking about that. There's things that — that are helpful in that, and things that are not helpful. And if it's the root of your issues, then I think the — then a small tweak can help. I'm not sure that that's our root [problem].

The long-praised coach then invoked president of basketball operations Danny Ainge and his words during this skid, as the Celtics have gone 3-7 in their last 10 games.

“Danny has said this on a number of occasions: When we have six or seven guys playing well, we're pretty good,” said Stevens. “We've just got to get back to that.”

Boston has been limited to less than 100 points in three of their five losses since the All-Star break, as their offense has struggled as much, if not more than their patented clamp-down defense for parts of the season.