We are at least 2or 3 seasons of steady improvement away from the quality you reference.
I certainly don’t believe it can be achieved within one season even if you attempt to replace 3/4 of the first team in one window, in fact I think such a move would jeopardise any progress for the forthcoming season and could even land us at the wrong end of the table.
We are more likely to add 2 or 3 players to the squad this season , give them time to integrate then repeat the process the following season.
If during this time we can improve the quality of football we play we will surely find our final position will improve commensurately.
If we can gain 1or2 places a season , I think that represents a realistic expectation for the manager.
‘Rome wasn’t built in a day’ as the adage runs.