I like Thelwell mate, he comes across differently to Brands - think Brands liked being the focal point and in the spotlight, think Thelwell is a bit 'boring' and just sees it as his job to do what needs doing.
To me Brands biggest failure was he had no experience of how English football worked. To expand upon that I'd say:
1) English football is a much bigger industry, so inevitably more "fingers in the pie". You have to know how to navigate this, as you wont get the purity you have in Germany and to a larger extent Holland
2) With the additional funds comes scrutiny. Everything is examined, is huge detail. You dont get to have a 3 year plan of not doing well, without it being called out. It makes for much shorter term thinking.
3) Sort of linked, but the Dutch league is a selling league, the PL is a buying league. So the structures/culture that he probably just assumed existed here dont. He left the academy really untouched for 2 years, and even the changes he made were smaller compared to what Thelwell has done first.
4) He was working for orgs that were at the top of their league. That gives you advantages. PSV are like say Chelsea, or City in our league. You can mess up, but will never really drop below 5th or 6th. If you mess up at Everton, you can be relegated.
It seems like Thelwell is starting with the academy, but also may be able to exert some influence on partners in the process (see fingers in the pie). Its not about being solely in charge, but being able to give influence in key moments.
He also seems to be negotiating hard. This is something Brands did too, but Thelwell seems to be doing it even more. A lot of walking away from deals. Like MGW, when Wolves wouldnt do ball, he goes and completes on McNeil instead.
If we can get Onana and Gueye over the line, and maybe a striker on loan he will have done well. Like he will have sorted a lot of areas, for a similar spend to what we recieved for Richarlison.