Isaiah Hartenstein's return could soon change everything for the Thunder

They need I-Hart back, and it seems like he's taking steps in the right direction.

Oklahoma City Thunder v Memphis Grizzlies | Justin Ford/GettyImagesThe Oklahoma City Thunder have been without an integral piece in Isaiah Hartenstein since Dec. 29, when he re-aggravated the right calf strain that has plagued him throughout the season.

Hartenstein has played just 24 games this season, averaging 11.2 points, 10.4 rebounds, and three assists while knocking down 64.4% of his attempts from the field.

Unlike other teams, Oklahoma City's gameplan is not entirely founded on rebounding and second chance opportunities. But having Hartenstein available and ready to take on extensive minutes gives them…