Tony Mowbray says work is still ongoing as he looks to continue building his Rovers squad ahead of the 2018-19 campaign.
Mowbray's made two moves in the window so far, bringing in two midfielders in the form of young duo Joe Rothwell and Jacob Davenport.
And he says work is still ongoing behind the scenes as he looks to bolster his squad ahead of the transfer deadline day on Thursday 9th August.
“We’ll integrate the new players in bit by bit and perhaps filter some of the young players out on loan to get some vital experience," he said after the opening pre-season victory over Hibernian.
“There are a few potential loans from Premier League clubs to come and some players of our own, who are likely to be a little bit more experienced.
“We want good footballers here at the end of the day. The balance will be having mid-20 players - 25, 26 or 27 - with a bit of experience in there alongside some younger players. We’re just trying to build a team which can be competitive for us next season.
“When we get to the Premier League one day then we will be able to spend fortunes, but at this moment we’re aiming to build bit by bit, work hard and see where the season takes us."
Following the Development Squad's success in Premier League 2 last season, a number of that squad - including Lewis Travis, Joe Nuttall, Willem Tomlinson and Dan Butterworth - were given their opportunity in and around the first team under Mowbray.
And the boss says there is plenty of interest in the club's young stars from clubs in the EFL.
“The phone hasn’t stopped ringing for a number of our young players, but we really want to have a good look at them in pre-season before making decisions on them," Tony added.
"They all look an inch taller and a bit wider, a bit more powerful and we'll be assessing them as pre-season goes on."