Complex sentence: It has been speculated that then-producer John Conboy had planned to keep Moniz on the show by having her sign a long-term contract, without the knowledge to Moniz and she was outraged that she quit immedeltely after her first day of taping.
Split into simpler sentences: It has been speculated that then-producer John Conboy had planned to keep Moniz on the show by having her sign a long-term contract, without the knowledge to Moniz. This left Moniz so deeply livid that she quit immedeltely after her first day of taping.