What is the relationship between Tim Armstrong and AOL in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

At that time, AOL Chief Executive Tim Armstrong boasted about already being a top three company in Web video, which would surely improve by landing Dermot McCormack, whom Mr. Armstrong called a “game changing talent.” Well, the game quickly changed over at AOL, which was of course acquired by Verizon Communications a few months ago.

Answer: employer