In this scenario, Kawhi Leonard decides he wants to leave the clippers which gives the Celtics a chance to get him for cheap in a sign and trade (like how KD was in a sign and trade for Deangelo Russel) the clippers will still be a good team with the additions of Smart and Horford but also bulk up for the future with 3 firsts and Langford and Nesmith. Meanwhile, The Celtics get Lenard who is thrown in the trade for financial reasons and they sign Williams in free agency. At the end this is the Celtics lineup for next season.

Pg- Pritchard,Williams,Dunn Sg- Brown, Richardson Edwards SF- Leonard, kennard, Mckinnie PF- Tatum, Parker, Williams C- Williams III, Kanter, Kornet

That’s a championship level team