Complex sentence: While Royal Caribbean's chief of captains William S. Wright was in command of the ship's journey across the Atlantic and also for the first few sailings, navigation of "Oasis of the Seas" is handled by Rob Hempstead and Per Kristoffersen.
Split into simpler sentences: While Royal Caribbean's chief of captains William S. Wright was in command of the ship's journey across the Atlantic and also for the first few sailings. Currently, navigation of "Oasis of the Seas" is regularly handled by Rob Hempstead and Per Kristoffersen.