Not according to Big Sam and West Ham's dirty owner he isn't.
http://www.telegraph.co.uk/sport/football/teams/west-ham/9098536/West-Ham-United-co-chairman-David-Sullivan-opens-up-on-the-club-he-supports-and-now-part-owns.html
David Sullivan: "We did look at another striker, but decided he might not make it in the Premier League. He wanted to come. We could have had him for £1.75 million but Sam just thought he might not make the jump. I didn’t have an opinion to be honest. Let me tell you something, I believe in coincidence. Get this. Carlos Tévez. Born, 5 February. Cristiano Ronaldo. Born 5 February. Neymar. Born 5 February. All born on the same day as me. Jordan Rhodes, also born 5 February. And you know what, this other player that we didn’t sign, also born 5 February. When I saw the Huddersfield guy was the same date as me and the same date as those players, I thought it was written in the stars. Just incredible. An incredible coincidence, isn’t it?"
Of course, he could be talking about a different striker available for that money who also shares Billy's birthday, but I doubt it.