One of Hillary Clinton's top advisers can't say what her economic agenda is, even after she delivered a highly anticipated economic policy speech Monday morning.

Instead, Gene Sperling, the former director of the National Economic Council, had to rely on vague responses Monday afternoon when asked by MSNBC's Thomas Roberts to explain her economic platform.

MSNBC's Thomas Roberts said of Clinton's address earlier that morning, "The one thing that people were asking after this speech is, 'Where are the details?' So where are they?"

"In terms of the details, we've got a long ways to go," Sperling responded. "And what she was doing in this speech is putting out the fundamental frame that will define the overall distinction between her and the Republican approach you hear."

"And she's putting out very specific policies," he said. "Even today she is suggesting areas she's going to be announcing more details on."

Roberts said, "She is putting out overarching themes, but not giving the details. So while she wants to attract the progressives — the people that say a [Sen. Bernie Sanders, I-Vt.] is getting on board because he will talk about details when it comes to taxes — it seems as if Hillary Clinton will give overarching themes and when we look at the details, they are not there."

Sperling disagreed.

"Yeah, no, that's completely not fair," her said. "Because, listen; it is July of 2015, and she is putting — she's already put out some specifics. You will see more details and specifics."

As to specific questions regarding Clinton's economic agenda, Sperling hedged and ducked in his answers. Asked to explain Clinton's position on minimum wage, Sperling said it should be "higher."

Asked for Clinton's position on Glass-Steagall, which former President Bill Clinton overturned when he was in the White House, and its limits on banking activities, Sperling said, "I think there's absolutely things that she supports that are about ensuring that companies do not play poker with the taxpayer's money."

He promised that the former secretary of state would be "tough when it's called for" on Wall Street and major banks. Sperling also promised that Clinton would reveal more about her economic agenda in the near future.

For now, he said, they're going to take it slow.