Bilic, 46, was confirmed as West Ham's new manager on Tuesday afternoon, with the Croatian returning to Upton Park having spent time with the club as a defender during his playing days.
Having left Besiktas in May, Bilic has moved back to East London as Sam Allardyce's replacement, and will be looking to immediately improve on this past season's 12th place finish.
In order to do that, Bilic will need to bring in some new signings, especially if he plans to use the 4-2-3-1 system he implemented at Besiktas. West Ham have a lack of true, quality wingers - and it seems that Bilic is intent on rectifying that as soon as possible.
The Guardian believe that Bilic has placed Besiktas wingers Sahan and Tore at the top of his summer shopping list, having managed both players during his time in Turkey.
Left winger Sahan is known for his relentless running and high work rate, whilst also possessing enough pace to trouble defences when cutting in on his right foot.
On the other flank under Bilic at Besiktas was form Chelsea prodigy Tore, who could cut in from the right hand side onto his left foot, displaying his pace and dribbling ability on a regular basis.
Both players would be valuable additions considering West Ham's lack of wingers, and the chance to reunite with Bilic may be too good to pass up for two of his most important players from his time at Besiktas.