Callimachus

…broken by a civil official, Callimachus, who decided in favour of an attack. Four of the generals then ceded their commands to the Athenian general Miltiades, thus effectively making him commander in chief.

…the polemarchos (supreme military commander) Callimachus, whom Miltiades was able to persuade to immediate action. The operational command of the army was to be held for one day in turn by each of the 10, but the four who had supported Miltiades surrendered their right to command to him.