T-Mobile US CEO John Legere says Verizon Communications' (NYSE:VZ) Go90 mobile video service could be a "debacle," and that cable TV firms such as Comcast (NASDAQ:CMCSA) might need to buy a wireless phone company to stay competitive.
Utilize the input text as a context reference, choose the right relationship between 'Go90' and 'Verizon' from the options.
Options: manufacturer, business division, owned by, director/manager