Read the following short case, and answer the question:

Siblings rob, 37, and Julie, 36, work in their family’s $15 million medical products firm. Both are capable leaders and have experienced success in their respective areas of responsibility. Compared to Julie, rob is more introverted, more thorough in his planning, and much better on detail and follow through. In contrast, Julie is more creative, more extroverted, and stronger in interpersonal skills. Since childhood, they have been rather competitive in their relationships. Their 62-year-old father is contemplating retirement and considering the possibility of co-leadership, with each child eventually holding a 50-percent ownership interest.

If you were to choose one leader for the firm, based on the brief description above, which sibling would you recommend? Why?