Complex sentence: Rear Admiral Aubrey Fitch assumed command of Task Force 11 on 1 April and it was reorganized to consist of "Lexington", the heavy cruisers and as well as seven destroyers.
Split into simpler sentences: Rear Admiral Aubrey Fitch assumed command of Task Force 11 on 1 April and it was reorganized. It now consisted of "Lexington", the heavy cruisers and as well as seven destroyers.