Stop crying! What did you think would happen? The Celtics are less than 18 months into a full rebuild. They just bottomed the team out 4 months ago, getting rid of Rondo and Green.
Get used to it, it's not Fantasy league basketball. Teams are built, not wished for using ping pong balls. They need more talent, yes, but some "fans" are just so short sighted, impatient, and childish.