Rangers look to have recruited well in January with Oscar Cortes, Mohamed Diomande and Fabio Silva all looking like useful additions. Gers boss Philippe Clement was hoping to add more dynamic players to his squad and, so far, the Ibrox faithful have been happy with the new faces. One man who isn’t so sure is Rangers legend Barry Ferguson who has given his early verdict on Fabio Silva via the Go Radio Football Show. Do Rangers need more from Fabio Silva?The 21-year old arrived with a stellar reputation but has yet to really fulfil his potential. Two loan spells last season provided a hint of wh…