staying power
The ability to remain relevant, influential, profitable, or successful in the future. The song's catchy tune and happy-go-lucky lyrics made it an overnight success, but it is so shallow that I suspect neither it nor the band will have much staying power. Our marketing strategies ensure that all your products will have staying power in today's market.
staying power
The ability to endure or last, as in I'm not sure that this young novelist will have staying power, or Our candidate definitely has staying power. This expression comes from racing, where it means "the strength to maintain speed through a race." [Second half of 1800s]