There’s a model they follow and Celtic have had some real success in the transfer window this last decade.
While an academy star like Kieran Tierney has been sold for £25m, the Hoops have also implemented a buy low sell high model effectively. That has a few stars in their current ranks forming the centre of summer rumours this transfer window, with big profits likely en route.
Outside that, a player in Glasgow is judged by their trophy haul in most cases and all of these Celtic players of the present and past can count a fair amount of silverware. They all have made a serious impact in Hoops, whether that be on the park, or what they brought into the club when leaving.
Taking a look over the last 10 years, we take our picks for the 13 best moves in no particular order that Celtic have made in that time.
5. Scott Sinclair
A shining light of Rodgers' first stint in charge, the winger reignited his career in Hoops. 167 appearances are the most he's made for one club and remains fondly remembered as a big game player. | Getty Images
6. Kristoffer Ajer
Ajer spent five years with Celtic before eventually moving on in 2021. He was sent out on loan to Kilmarnock in 2017 to develop and then motored into becoming a powerful centre-back. Turned the club a profit and contributed to campaigns laden with trophies. | Getty Images
7. Patrick Roberts
Perhaps a tad controversial, given it was really the first half of the 2017/18 campaign he shone for, but the hype surrounding Roberts was massive. Dazzled with his winger play and even now, there's still the odd shout pining for his return, such was the impact he made in those six months. | Getty Images
8. Kyogo Furuhashi
There had to be a space for the current talisman. Was the first in a wave of Japanese talents heading for Celtic and has been a regular goalscorer, particularly against Rangers, since signing three years ago. | SNS Group