It now seems that Bilic was hoping to add another, and was going back to his former club Hajduk Split - who he played for and managed - in search of new talent.
Tutto Mercato Web report that West Ham were hoping to sign Hajduk wonderkid Andrija Balic, who has earned comparisons to Andrea Pirlo - partly for his ability from midfield, and partly because he looks somewhat similar to the Italian legend.
The 17-year-old has already played almost 50 games for Hajduk, and is tipped as a star of the future for the Croatian national team; something Bilic will no doubt be well aware of.
However, West Ham - as well as Roma, Stuttgart and Real Betis - will be left frustrated, as TMW suggest that Udinese have made a offer to Hajduk for Balic as well as to the player himself, which has seen off the competition, making a move to Serie A seemingly imminent for the promising midfielder.
It will now be interesting to see whether Bilic continues to search for young talent in his homeland of Croatia, given that he is such a big name and the Premier League has a huge draw, even though he has allegedly missed out on Balic's signature.
Would you like to see Bilic find Croatian prospects and bring them to West Ham?