Career growth is largely dependent on your interpersonal skills. Close relationships with peers, managers, mentors, sponsors and coaches will help you on your growth curve. Build a strong network with focus on the quality of that network rather than the quantity or numbers therein.
Cultivate and develop relationships with your peers and managers at the workplace. Recognize that your managers, manage and guide you and so they may be your coach also. However, it is better to look for external coaches who are not related to your job.
Career growth is something that requires focus and contacts, over and above, knowledge and competence. Interpersonal skills are of vital importance and it would be prudent to nurture and develop deep relationships and contact with the right people in the right places.