The phrase "strong bench" refers to having a team or group of people who are skilled, talented, and capable of replacing or supporting the main members effectively. Full definition
Some New York Republicans say it's a little too early to talk about political futures for the Trump kids, though they could be members of strong bench of candidates in the future. (nystateofpolitics.com)
A really strong bench press involves this cue to bend and break the bar, and what this does, is this helps you seat it to the center, and then bend and break, spreading it out. (weckmethod.com)
Buzz will lead an outstanding team of talented educators and leaders dedicated to student learning, including a very strong bench of Presidents of the individual business units.» (goodereader.com)