There isn't a striker in the champoinship that can bridge the gap to the premiership, let alone division one.
depends what you mean by bridge the gap
there have been plenty of strikers from the championship that could/have done a job in the premiership
doyle, johnson, beattie, ebanks blake, keane, king, darren bent, marcus bent, young, ashton, huckerby and zamora.
Dont think theres ever been a real world class striker from the lower leagues but more than enough capable players. if hes free that worth a gamble i say