2018-19 NBA Preview: Areas of improvement for each Celtics youngster

#5 Semi Ojeleye - Decisiveness

Milwaukee Bucks v Boston Celtics - Game Seven

There's something to be said about a rookie who didn't look out of place when fielded in playoff action, as Semi Ojeleye was. While the man with arguably the best-looking shoulders in the league is only a rookie right now, Ojeleye showed enough potential in the limited minutes he got last season to give Boston fans the hope that their roster contains another diamond in the rough.

Ojeleye is right now the definition of an end-of-the-bench player, except he's streets ahead of most other players in his category as a defender. Weighing over 240 pounds but with the foot speed of a player around 50 pounds smaller, Ojeleye is an engaged, active on-ball defender and a team defender with great awareness and a knack for reading plays and responding instantly.

He did shoot decently in his rookie season, though he eschewed any shot that he did not need to take. This needs to change as Ojeleye has the physique to be a dominant force as an offensive rebounder or in the low post in the modern NBA, and could conceivably end up playing as a small-ball center later on in his career.