The Conservative leader's refusal to outline a detailed strategy for negotiating Britain's future ties with the European Union has only deepened suspicions among politicians of all stripes that she does not have a grand plan, but the British public still appear to have faith in their leader.
May, the daughter of an Anglican vicar, entered Downing Street on July 13, promising stability after a tumultuous few weeks following Britain's shock vote to end its four-decade membership of the EU.
But her tendency towards micromanagement and a perceived pettiness, demonstrated by the barring of a rebel MP who criticised her leather trousers, have prompted concerns within her own party.
"I never really saw very much imagination, or flexibility, or instinct, or vision, which I think is what you need in a prime minister," Liberal Democrat lawmaker Nick Clegg, the former deputy prime minister, told AFP.
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May's talk of standing up for "ordinary working-class people" also took a hit when she backtracked on plans to rein in excessive executive pay.
A similar reluctance to spell out her Brexit proposals has frustrated MPs on both sides, and her repeated insistence that "Brexit means Brexit", which she presented initially as a promise to fulfil the referendum vote, has for many become a hollow mantra.
May insisted yesterday that she wants to tackle immigration and take "control over our borders", but has also said she would like access to the single market -- two things that European leaders have said are incompatible.
The Economist this week dubbed her "Theresa Maybe" on its front page, carrying a damning assessment of her record, and barely a day goes by when she is not criticised in newspapers on the left and the right.