Now the 22-year-old could look to remain at Ibrox after revelling in a thrilling derby victory that ended Rangers' long wait for a win over their Old Firm rivals.
"We need to try and strengthen in certain areas so we won't stand still and milk this moment". Every time I've called upon him, whether it be a cameo or from the beginning, every single day in training he's available.
"Any team that comes up here, if we play to that level, they will be in for a tough game".
Since returning to the top flight in 2016, they have struggled to bridge the gap to Celtic, who have won seven consecutive league titles and boosted their coffers with uninterrupted access to Champions League cash.
After 38 games the Gers will now enjoy a winter break to recharge before the second half of the season and Jack thinks the rest will benefit them in the title race.
As the final whistle sounded, Rangers got their new year festivities started early while Celtic will be nursing more than one hangover from today's game. But to a man today, we dealt with that perfectly and we were well deserving of the three points. There are a lot of good players in our squad and you can see what it means to them.
Many Celtic fans reacted on social media after the match, and the display of their leader on the pitch was a regular topic among their many posts on Twitter. "They'll feel the hurt of losing a Celtic v Rangers game and hopefully that will make them better going forward".
With it being our first Old Firm victory in 13 attempts, the result was massive and shouldn't be underplayed by anyone as it does mark what everyone hopes is a real turn for us again, even if there are plenty of improvements still to be made. We have a lot of work to do in terms of our game, we have some work to do in the transfer market, that we want to get players in.