Why did our team replace the offlaner with an unknown regional player in Dota 2?

[Kyle21]

As a long-time Dota 2 fan, I'm trying to make sense of all the recent roster shuffles after the last major tournament. My favorite team just dropped their offlaner and picked up a relatively unknown player from a regional league, and I'm not sure what the strategy is behind the move. For those who follow the competitive scene closely, how do you analyze these roster updates beyond just player skill? What are the common team dynamics or role conflicts that lead to these changes, and how can you tell if a new lineup has good synergy on paper? Are there any analysts or resources that provide deeper insight into the strategic reasoning behind these moves, especially for teams outside the top tier?