Read the sentence. Unaware of the change in the week's work schedule, the loyal customers saw Marquis arrive to work a day early. What is the best revision for the sentence?

As a consequence of being unaware of the change in the week's work schedule, the loyal customers were surprised to see Marquis arrive to work a day early. I think this flows better and is more logical because it explains the relationship between the change in the week's work schedule and Marquis arriving a day early to work.