However, Broad insists that everyone is focused on winning the Test match rather than any other issues.
"When we turn up for a Test match week it is very focused about that job, making sure we score runs and take wickets. There is not a lot of time for discussing that sort of stuff," said Broad.
"But what is vital, and what needs to come out of this week, is that we turn up to Lord's with all 11 players making sure England win that Test and all our energies and focus is going towards that.
"If you just have one player slightly off, it can be quite damaging. It is important that once we get to Lord's as a group, whoever is there, we make sure we are fully there mentally and win that game."
England must beat South Africa in the third and final Test in order to avoid being replaced by the Proteas at the top of the Test rankings.