He's 38 years old and didn't play defense when he was young. As for his "pure offense" he shot .415/.331 last year. Do you think he'll be better or worse this season?
For Brad Stevens? On the Celtics? Playing off Horford, Hayward, Irving, Tatum and Brown?
Safe to say those shooting percentages Trend upwards.
He is a static volume scorer who lacks efficiency and does minimal playmaking. He also ranked 521st out of 521 players in defensive real plus-minus last season. He won his last 6th Man award a few years ago mostly on reputation. The last year he was an above average player was 5 years ago. He has had a very good career, but now he is pretty much done as a player.
And the idea that he's going to trend upwards at age 38 seems farfetched to me.
1957, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1968, 1969, 1974, 1976, 1981, 1984, 1986, 2008, 2019