Depends on long term goals.
Want to be in the low-playoffs for several years in a row? Great.
Want to legitimately contend for titles? Different story.
Frankly, both are valid routes, and I think being a 4-5 side second round playoff team year after year is pretty underrate and can be fun for a fan base.
However, if you are trying to build a true contender, one of the worst things you can do is overacheive, and think that that acheivement represents your "true" talent, convince yourself that you are "one player away", get that player, then be stuck in mediocrity for a while. Happens most obviously in football. Atlanta was "one away," packaged tons of picks for julio jones, and they really lack depth across the roster. With Griffin, the Washington team will be in a rough spot for a while.
Now, the C's are really set up to overrate themselves. Terrible conference, so they may meat the arbitrary 8 team cutoff for "playoff team" despite being terrible. They have vets who know how to play, so they might win games against bad teams, boosting the record. Many in the conference are tanking, so we think we're better than we are. Motivated first year coach. Etc.
We need to think of how this team would be in a normal year or normal division. We'd be bad. We need to build the team as such.
Asik is that kind of a "one away" player. Very good, but his impact is defense and rebounding, not the focal point of a team.