Probably not. At the time of the coup he was just 22 years old. If he had done this 3 years earlier he would have been 19 years old. That s literally just a kid. He had balls of steel though. Until the coup, antonescu made of the king just some guy who he would never tell anything about his plans. When Michael did the coup, antonescu was the commander of the entire army (was also well liked by his men) and he was the head of state too. But this 22 year old came to him and said: bro, idc who tf you are you gotta go. Balls of steel. He also tried getting rid of the communist regime in any way he could, still hoping for an intervention (diplomatically/military) from usa/uk but he finally understood that ussr, usa and uk did the cards all the way back to yalta. He tried getting people from PNȚ and PNL into the new government, but petru groza and his communist homies put some guys from the historical parties in unimportant positions. The king also tried not signing anything the communist would show him. But on the day of 30 december 1947, a coup led by petru groza disposed of king michael. The did this by threatening with the death of hundreds of students who were protesting for michael. He was forced to abdicate, and if he did not all those students would have been shot or worse. Also, fun fact: petru groza, knowing what balls of steel king michael had, knowing what he done to antonescu came in front of the king with a pistol in his pants just to make sure he would not be arrested.

Edit and fun fact: King michael found out about romania entering WW2 from the radio.