Summer signings such as James Tavernier, Rob Kiernan, Jason Holt, Nathan Oduwa and Martyn Waghorn have all thrived at Ibrox so far, but that isn't stopping Warburton from pursuing more new arrivals.
Former Barcelona wonderkid Gai Assulin is currently training at Ibrox in a bid to win a contract, and Warburton has told the Glasgow Evening Times that he will make a decision over the Israeli's future in the near future.
"Here's still here and training well. When you sign anyone, be it staff member or player, it's about getting the right decision and doing your homework, due diligence for both parties," said Warburton. "We are looking at him and he is looking at us. It's up to us to make the call when it is appropriate."
Warburton has also speaking to The Scotsman ahead of this afternoon's clash against St. Mirren, and was asked about the club's plans for the January transfer window.
With Rangers widely expected to win the league and earn promotion to the Scottish Premiership this season, any January signings have to be made with the top flight in mind - and that's something Warburton is certainly keen to consider.
"We have to start building our squad for next season in January because you need to bed players in. If you try to get all of your recruits in June that’s a big ask. We had to do that this year because of the situation. Ideally we will get one or two in January and then you look to supplement in May, June and July," added the Gers boss.
Whether those plans change with the potential of Assulin remain to be seen, but it's clear that Warburton is already planning for the January transfer window - and whilst a couple more additions may not make too much of a difference this season, the focus may already be turning to next term and how Rangers can fare in the Scottish Premiership.