Crew skills need to be worked on. Here are a couple of ideas,
One would be for the crew bonuses to be earned as you level through the gathering and crafting.
There are 7 levels for each of the gathering missions. once you complete a level you get 2 skill points to spend
per companion for a total on 14 skill points. Make 2 skill trees one for critical bonus, one for efficiency bonus, As it is right now you have crew members with useless bonuses.
The next one would be to revamp the gathering mission selection screen. The easiest fix, and this has been suggested many times, is to ad a refresh button.
What would really be nice is to make the selection screen would to give you the option of selecting what material you want to get and how much you want to spend.
Using Archaeology as an example:
Once you select archaeology a drop down menu opens, from that you select the type off item you want to get, either color crystals, power crystals, or artifact fragments. once you select that it opens up another drop dawn menu where you will select the yield, moderate, abundant, bountiful, or rich.