Updated, 10:30 a.m.

Good morning on this Holy Thursday.

It’s opening day for Major League Baseball, and our two teams have two new faces that will be hard to miss this season.

Their managers.

Mickey Callaway has taken over for the Mets, and Aaron Boone will lead the Yankees.

“The manager is the most public face of every single team, more so than the players,” said James Wagner, who covers the Mets for The Times.

“Both teams had managers for a long time,” he added — Terry Collins had been with the Mets for seven years, and Joe Girardi with the Yankees for 10 — “so there’s been continuity for both teams that changed at the same time.”

It will be a gamble for both squads because neither manager has done the job before; Mr. Callaway was the pitching coach of the Cleveland Indians, and Mr. Boone was an ESPN announcer with no coaching or managing experience.