Ian Harvey has said Gloucestershire can repeat the success they enjoyed early in the last decade.
Harvey became new head coach Richard Dawson's assistant in March.
The club won five limited-overs trophies from 1999 to 2004 and Harvey said the current team has the talent to do the same over the next five years.
"We're targeting every competition," he told BBC Radio Gloucestershire. "We want promotion and to put ourselves in a position to win trophies,"
Harvey had two spells with Gloucestershire as a player between 1999 and 2006 and was part of the county's treble-winning side in 2000.
"As great as it was when I here as a player, to be part of that fantastic era of winning a lot of one-day trophies, these guys as a squad can do the same," he added.
"They can create an era for themselves over the next four or five years, and that's what we'd like to start doing this season,
"We have the talent, we have the ability for these guys to make their own bit of history for Gloucestershire cricket."
Gloucestershire finished seventh in Division Two of the County Championship in 2014.
The county managed to reach the quarter-finals of the T20 Blast but finished eighth in their One-Day Cup group.