The Minnesota Timberwolves need more rotational players on their roster. As it stands currently, the only big that would be playable in late-fourth quarter minutes (by most teams standards) is Karl-Anthony Towns. Outside of him, D’Angelo Russell, Malik Beasley, and Josh Okogie are all more-than competent.
That said, there still needs to be much more added to the roster, especially at the center and power forward spots. One of the more interesting free agents available this coming offseason is going to be Spurs big Jakob Poeltl, who was one of the main pieces acquired from the Kawhi Leonard trade back in 2018-19.