Jones is hoping to strengthen his squad, but so far has not made any new signings and does not expect a frenzy of activity among cash-strapped clubs during the close season.
"Business will really start towards the end of this month and early next month, but clubs don't have a lot of income over the summer and don't really want to be taking on extra wages," he told the Owls' official website.
"That's why the market has been really dormant so far. There's been the odd few moves but not too many and we expected that.
"We know what we want to do and where we need to strengthen so we can build on last season.
"The Championship is an unforgiving division and it is only going to get stronger with the additional money coming down from the Premier League.
"We have to make sure we progress and that's what we are trying to do as a football club, from the academy all the way through to the first team."