Kenny Miller has been so impressed by the impact three Rangers players have had on the team since signing for the Ibrox giants. The Rangers first-team squad was overhauled in the summer under the tutelage of Michael Beale with nine new faces brought to Govan in an attempt to close the gap on Celtic. The Hoops had just won the domestic Treble under Ange Postecoglou but Brendan Rodgers replaced the Aussie-Greek in the Parkhead dugout after he left for Tottenham Hotspur. Rangers splurged £21m – which incorporates agent and signing on fees – including a near £6m on Brazilian striker Danilo. But ba…