I dont think ainge would trade 2 picks for Love without an extension in place. And i dont think Love is going to sign an extension with anyone that isnt an instant contender. After all these years in Minnesota he deserves to try the unrestricted free agent market. The lakers appear to be a favorite to land him.
To the OP's question, i think it is too early to tell if that was a good enough package to land Love. As others have said, the Celtics would have to be a bottom 3 team in February to have a chance at pulling it off.