jamie byrne , youtube ’s director of content strategy , says the site is most concerned about engagement — primarily the total “ watch time the renewal process is done . celebrity alone is n't enough . youtube will continue producing stuff for the site . this week , google ’s video site will start offering new contracts to some of the channel programmers creators it signed up in the last year . in the first round , youtube took a scattershot approach , funding 100 concepts from a wide variety of producers as well as a lot of mainstream celebrities . changing channels : youtube will pull the plug on at least 60 percent of any revenue generated by the videos it paid for . and just like the tv world , youtube is n’t going to renew all of last season ’s programs .