The skipper has been subject to criticism from fans in the wake of defeat to Ross County and the draw with Dundee.
Rangers would have been top of the Scottish Premiership had they signed Lawrence Shankland from Hearts in January. That is according to Stephen McGinn - who rinsed the decision to recall Kemar Roofe to the starting line-up for the crucial clash with
Naismith's men face the Gers for a place in next month's showpiece final on Sunday.