Given the former Wolverhampton Wanderers sporting director only joined in February 2022, he did not get the pleasure of overseeing the January window in which they offloaded Lucas Digne and replaced him with Vitaliy Mykolenko.
However, he did go on to negotiate sales for both Anthony Gordon and Richarlison, which saw the two leave for astronomical fees that have helped keep the club somewhat afloat.
With what little budget they have had across his 18 months in his position, it is highly impressive just how shrewd Thelwell has been.
After all, snagging Dwight McNeil and James Tarkowski from relegated Burnley marked clever business, buoyed by the experience of Idrissa Gana Gueye, and the youthful excitement of James Garner and Amadou Onana.
However, all those deals were prefaced by a summer window in which Everton truly were truly hamstrung, only bringing him Demarai Gray for a nominal fee and the free Andros Townsend.
To think that they were allowed to unload £30m on Beto back in August marks the steady return to fiscal parity, which the director of football has done wonders towards healing.