Having already brought in four new signings, and with his eye on a further two to come before the month is out, Bruce says his actions are not a reflection on how the team who started the season have performed.
But the Birmingham boss insists that for the team to complete the job and retain their Premier League status, he felt he had little choice but to strengthen.
Jamie Clapham and Stephen Clemence were the latest two to check in just last week and Bruce said: "Both players are of proven quality. They are also both English and we thought we had to address that situation.
"Basically, the quality of the two will be a huge lift to the squad. I am delighted to have got these two players in to give us that bit of quality that you need in our quest to remain in the Premiership."
And he moved to allay the possible fears of some of those who got Birmingham up in the first place that they do all have a part to play.
"I want to make it pretty clear that the squad we have had has done really well, but what we needed was extra strength in depth," he added.
"The arrivals of Christophe Dugarry, Ferdinand Coly, Jamie Clapham and Stephen Clemence will be valuable additions over the next six months, because as managers we do not know how big you need your squad to be.
"I heard Gordon Strachan recently say that he had only used 14 players over the last four
months. I think we have used 26. We have been struck down by injuries and suspensions."