Lots of doom and gloom here and interesting comments.
A late season west coast trip with absolutely nothing at stake - motivation is certainly going to be lacking. If you are surprised by some losses, that is on you.
Perkins is a clown. Would the Cavs lose a fistfight with many teams? Probably yes. Who cares? They do not give trophies for fighting. Of course a team will look "soft" when there is no real motivation to play hard.
I think a few losses are a good thing. The young Cavs are learning that they cannot just show up and launch 3's to win games. I suspect there will be another loss or two on this trip, then when they get home a little "come to Jesus" discussion with Atkinson. As long as the Cavs get back on track with full effort in April for the last couple weeks of the regular season they will be fine in the playoffs (assuming they stay healthy).