Communication skills
I was told by a prospective employer that he would rather hire a mediocre tech with great communication skills than an excellent tech with mediocre communication skills. His point was that it is easier to train a good communicator how to be a better tech than it is to train a good tech how to communicate better. Communciation is a 2 way street, both parties have to listen and speak to make the process work. Too often I have been told that the information I give is not what is wanted, but what is wanted is explained so vaguely that there is no real communication to help me change on my end of the conversation.