The phrase "quality depth" refers to a situation where there are many good and skilled individuals who can perform a certain task or job effectively. It means there is a large and capable pool of people with the necessary qualities and abilities.
Sentences with «quality depth»
So the more probable reasons for the decline were these key injuries and perhaps a lack of quality depth to fill the void. (justarsenal.com)
I do think we need 1 more quality depth in front though to rotate them. (sbnation.com)
Adding more quality depth to the squad this summer can help with that. (espnfc.us)