I said this in the next manager thread, there is no comparison to where Poch was when we appointed him to where Potter is now. Poch had Southampton flying, highest finish in their PL history iirc (or highest points). He beat big clubs along the way and also increased the value of players such as Shaw Lovren, Lalana and Lambert. Potter hasn’t achieved anything of note with Brighton as far as I can see. Mourinho hasn’t worked out doesn’t mean another top manager is doomed to failure.
Potter has a trophy to his name and took some big scalps away from home in the EL when he was manager of a small fry Swedish team - i think the argument regarding Brighton being hamstrung by their strikers is a strong one, if you value stats they show they create a lot of chances, a lot more than we do, but just don't convert them