President Donald Trump won’t be able to quickly overhaul the nation’s tax system because he lacks a clear White House plan and adequate staff to carry out such reform, according to people in the administration, in Congress and among U.S. tax experts.

In an echo of its attempt to roll back Obamacare that ended in an embarrassing collapse in Congress, the Trump administration has vowed quick action on taxes. But it has yet to appoint people with the skills to evaluate complex tax laws, draft legislation and sell it to deeply divided lawmakers.

Burned by last week’s failed healthcare measure largely authored by House of Representatives Republicans, Trump is determined not to count on Congress so much this time for handling the details on taxes, his second major legislative initiative.

But that only underscores his need for a strong White House tax team, which the administration still lacks. Many policy options