This week, some of Boston’s artistic directors and choreographers discuss the challenges of running a company and inspiring up-and-coming dancers. Panelists: José Mateo, founder and artistic director, José Mateo Ballet Theatre; Shaumba-Yandje Dibinga, artistic director, OrigiNation; Jean Appolon, founder and artistic director, Jean Appolon Expressions; and Billy McLain, dancer, the Wondertwins.