There is when there is no other trade partner. This Celtics nonsense is just that; nonsense. Sure, if the Lakers bowed out the Celtics would be quick to underpay with their Brown/picks offer for the rental risk, but otherwise they aren't going to complete.
I'm not sure the Lakers are in position to take that risk. Even if the Celtics offer is nonsense...there's always the possibility of a Thunder/Raptors situation where a team that is looking at either making a big trade or rebuilding, decides to delay their rebuild for a year and make a trade.
So far, the Lakers seem to be playing it smart (which actually scares the hell out of me) because they have apparently put forth a good offer, but not their best offer.
If the rumors that they are "canvassing the league" with the #4 pick to see if they can get a 3rd team involved are true, that is also smart (again, scaring the hell out of me) because it means they may be able to improve their offer without including Kuzma.
But at the end of the day, if Griffin says "Include Kuzma or no deal" the Lakers only response should be "Do you want to call Woj and let him know it's done, or should we?"