It doesn’t look like the the vacant Cabinet-level post, the head of the Small Business Administration, will be filled anytime soon.

Karen Mills, the former SBA chief, left Washington for the ivory tower last month. But it’s been harder than expected for the White House to find a successor, we hear. Several candidates have hit obstacles during the vetting process, say folks charting the administration’s progress.

The White House has been hoping to find a strong candidate who might add diversity to the Cabinet mix, and we hear that they are focusing on a couple new prospects, both Latinos.

Meanwhile, the small-business community is growing impatient with the slow job-search process, worried that their issues will be put on the back-burner without a strong voice at the Cabinet table.

So, the search continues. New reality TV show idea: “So You Think You Can Be a Cabinet Secretary?”