Tech Titans, a large technology firm, decided that it needed a more diverse upper-level management team. However, it discovered that it had very few women and people of color to choose from. To increase the number of women and people of color in upper-level management, the company decided to create a mentorship program between upper- and mid-level managers. What best practice should Tech Titans keep in mind as they develop their mentorship program and choose mentors and mentees?