Given a document, find the main entity about whom the author is writing. Write the full name if mentioned in the text. Note that URLs in the text have been replaced with [Link].

Example input: At least Raheem Morris finally has the name of the Bucs' starting quarterback in the back of his mind.
 He wants to make sure he made the decision with his head and not just his heart.
 That's why Morris declined to name his choice between Byron Leftwich and Luke McCown on Friday until after one last consultation with his coaching staff.
 After that  Morris said  he would inform the owners  then his team before making the eagerly awaited announcement. Players were off Friday  so an announcement could come this morning.
 "We'll have a decision here in the near future " Morris said. "I think we've got to go with who we think gives us the best chance to win.
Example output: Raheem Morris
Example explanation: Here the main entity is Raheem  Morris since the main topic of the document is about him starting as quarterback.
Q: If you wondered just how insane the NFL season would get  fans were treated to a video over the weekend that reportedly featured  former Dolphins offensive line coach Christopher Foerster  snorting what seemed to be cocaine while  he  whispered sweet somethings to a Las Vegas model who would later post that very video to  her  social media feed.
The reason  she  did such a thing was  in part  the ongoing national anthem controversy that continues to polarize a country.
 Foerster  took full responsibility for the video and has since resigned from  his  post with the Dolphins.
 He  states  via The Sun-Sentinel: âI am resigning from my position with the Miami Dolphins and accept full responsibility for my actions. I want to apologize to the organization and my sole focus is on getting the help that I need with the support of my family and medical professions.â
A:
Christopher Foerster