Bruce took over as Hull manager in June and although he is happy with the squad he has assembled, he has admitted that he would still like to strengthen his ranks.
"As managers, we always want a little bit more and I will keep knocking," he told the Hull Daily Mail.
"I would like to bring in a couple more if I could, but I might have to wait on that. There are two or three weeks of the transfer window to go so we will see what we can do."
Hull begin their Championship campaign at home to Brighton & Hove Albion.