The phrase "great backup" means having someone or something reliable and skilled to support or assist you in case of need or to fill in for you when you cannot do something.
Sentences with «great backup»
Think about it, we have great backup at each position and perhaps the best squad overall. (justarsenal.com)
Rosicky and Arteta are great backups for the deep playmaker role. (justarsenal.com)
Plus, non-electronic games are great backup if your gadgets run out of juice. (ordinarytraveler.com)