Amid questions and criticisms of the Securities and Exchange Commission’s oversight and enforcement capabilities, one of its own commissioners has joined the call for policy changes to shore up its enforcement, including the end of a penalty pre-approval pilot program that’s been criticized by some as tying the hands of its staff.

In a recent speech to the North American Securities Administrators Association, Commissioner Luis Aguilar said the SEC should “answer its critics by demonstrating its commitment to be the markets’ watchdog.”