I am looking at potential.
These actors are all capable but as a group don't seem to have melded.
As individuals they could use some work.
Lets look at Star Trek the Next Generation in the early shows.
Riker sucked, plain and simple, his character was way to too stiff and always seemed forced.
It took a while for him to find his groove with the character and for the group to meld.
Also this was a pilot, more than one show has had actor changes between the production of the pilot and the beginning of the series.