Overboldness

nothing did him so much good toward the people (to whom he appealed) to make him obtain his suite, as the sharpnes and over boldnes which Cæsar had declared in that judgement.

Source: wiktionary

Contrary to accepted wisdom, the qualities usually thought of as entrepreneurial - risk-taking, breakthrough creativity, foresight, grand ambition, power and administrative abilities - are all secondary. Indeed, over-boldness may be a handicap.

Source: wiktionary