Adams might actually be our smartest move of the off-season if we go down that path. Think about it, OKC want to shed salaries so you are going them a favor while addressing a need for yourself and might score a pick in the first round either straight up or upgrading our second for their first in the process to add a young talent to develop in the long run.
Re-sign Barnes and you still have some money left over for the back up PG or a SF.
Other than Vucevic (who is a different type of player), Steven Adams is currently a better player than any other C in free agency. He knows what he can and can't do so he won't be like WCS looking to be something he is not. Adams will rim run, set great screens, rebound, defend the paint and get his points of scraps. A hardened young veteran body with deep play off experience at a reasonable contract that does not commit you to huge long term money.
This deal makes a fair bit of sense for us to be honest.