Brooklyn Nets' Lonnie Walker IV, left, drives around Cleveland Cavaliers' Caris LeVert during the NBA basketball game between Brooklyn Nets and Cleveland Cavaliers, at the Accor Arena in Paris, Thursday, Jan. 11, 2024. (AP Photo/Christophe Ena) AP

This article originally appeared on Celtics Wire: Brad Stevens confirms Lonnie Walker IV is 'eager' to get to work. Within all 30 teams is a hierarchy. Here's a look at each franchise's second go-to player.

From an experienced summer signee to a seldom used trade-deadline pickup, these seven Celtics will be looking to prove themselves in training camp.