West Ham boss Slaven Bilic hopes to knock off their transfer business early this summer.
The Irons want either Marseille's Michy Batshuayi or Liverpool misfit Christian Benteke as a high-class striker is their top target.
Bilic said: "We are talking to some players and some agents, trying to do deals as quickly as possible. But most of the time it doesn't happen because the players and the clubs have options.
"They have the options and we have the options, so we wait."