What I am finding with the designers and researchers I am currently mentoring is there is a gap in their sales skills. You will need to convince employers you are right for the position, team and company -selling yourself as the solution, and then within your position you will need to convince your coworkers and/or clients that your ideas are the right solution, and then be able to negotiate your ideas with coworkers and clients. In the end its about sales skills. Depending on your natural talents and skills, and how you learn, you might be able to expand your knowledge via reading or a local workshop.
I have mentored and managed a few people out of University of Michigan’s program, and I find their skills are needing strengthening in usability principles. For this I recommend attending research reviews and looking at papers. I am not familiar with any training program that includes this in their curriculum. UXPA’s conference normally has a research review.
I could go on, but let me know if you want me to elaborate.