Kevin Love scored just five points on 1-for-7 shooting in the Cleveland Cavaliers' 97-84 win over the Philadelphia 76ers. All seven of Love's shots were in the first quarter.
Love looked passive and disengaged on the offensive end.
"That shouldn't happen," Blatt said of Love only shooting seven times. "That absolutely shouldn't happen."
Blatt later said: "I don't think we moved the ball well enough. We could have played at him a little bit more. We haven't practiced for a while. We have to work on a few things and clean that up."
LeBron James felt like Love had more scoring opportunities.
"I think Kev had some shots that he passed up on," James said. "Maybe he just felt like he wasn't in a good rhythm, but I know I hit him for a few shots after the first quarter where he had some good looks and he decided to swing, which is OK because it kept the ball moving.
"I think for Kevin, I think his confidence maybe just shooting the ball is a little down. But for me as a player, I got him good looks. I want him to shot the ball and shoot it with confidence."
Love doesn't believe he's lacking confidence.
"I had some good looks in the first quarter," Love said. "A couple of tip-ins that I missed...I'm getting good looks, but not for a lack of confidence."
Love has remained outwardly professional throughout the season.
"I'm just doing what's being asked of me right now and playing where I'm being asked to play," he said. "We've won 11 games in a row so I'm going to continue. That's just how it is right now."
