They noted that the board had not endorsed any specific alternative to the Clinton plan.
"I'm surprised that management and board are endorsing this deal."
If the board endorses the resolution, as expected, the inquiry would begin immediately.
With 14 of 17 members present, the board endorsed recommendations submitted by a task force last October.
A company statement said the board unanimously endorsed the strategy on Wednesday.
But he said the commission would make public which boards do not endorse the panel's call and then visit them to apply more pressure.
The board endorsed the working of the peer review process and saw no reason to retract the paper.
Though the board endorsed the proposal, the vote in September was 16 to 6, with 5 abstentions.
On March 6, the group's board of directors endorsed a national campaign against predatory lending.
Even so, its board went ahead and endorsed the discounts, by a 12 to 2 vote, on Oct. 27.