Michael Cole has now been replaced in a huge update on WWE SmackDown. The show has seen several changes made for the night.Michael Cole has been replaced by commentator Vic Joseph, but now, Corey Graves is backCole was gone from tonight's show, missing the episode of SmackDown in an unusual turn of events. The star usually never misses a show, but he was nowhere to be seen during tonight's event. Replacing him on the show was regular NXT commentator Vic Joseph. Joseph has stepped up several times in the last few months to fill in on gaps in the main roster commentary team, and tonight was no exception.On top of that, there was another change on the show. Usually, Booker T has been filling in since Corey Graves was attacked by Brock Lesnar. However, the star was absent tonight, and replacing him on SmackDown was the returning Graves. He was back to work with Joseph tonight on the stacked show.He did not address the attack by Brock Lesnar, but he did say, "Rumors of my demise have been greatly exaggerated."Michael Cole rarely misses WWE showsOn the commentary team, Michael Cole has been a fixture for most of the last three decades. While he has worked in other roles during that first decade, he later became one of the fixed names on commentary, where he rarely, if ever, missed a single show.In recent months, he has taken a more casual approach, missing a few shows here and there, while remaining one of the most consistent figures in commentary in history, earning his position as the voice of WWE. It remains to be seen when he returns to commentary again.Should the star not return soon, then Vic Joseph and Wade Barrett could end up filling in regularly, given that the two have been consistent in helping to fill up the gaps.