Everton legend Ratcliffe urges Martinez to sign Wigan striker Kone
Ratcliffe believes it's essential Martinez adds firepower to Everton's attack - and Kone could be the man to do it.
"He looks decent and could be a handful," Ratcliffe told the Liverpool Echo.
"He looks like he could handle it (at Everton).
"But it takes a different type of player. It is alright doing it at Wigan when the pressure is off from the supporters."