Prime Minister Justin Trudeau's cabinet is almost entirely different than it was just two days ago.

In Wednesday's shuffle, all but eight of Trudeau's 38 ministers stepped into new files. Some ministers were forced out after controversial missteps. Other star MPs got bigger economic assignments. And a number of new faces were sworn in from important election regions.

Today, Catherine Cullen – the host of CBC's political podcast The House – returns to explain why Trudeau has transformed his cabinet, and what it says about his strategy to stay in power.