Football Manager is a game where a player can create his virtual reality in a video game where he aspires to become a top manager. It is a fascinating game and offers almost close to a real-world experience.
Quite naturally, when a manager creates a tactic in the game, most tend to go for a tactic that will result in good football and more goals. To do so, most people tend to make the mistake of going for the fancier player roles in almost every position neglecting the balance of the team.

For instance, among the two goalkeeper roles, a sweeper keeper is often favored rather than a traditional goalkeeper. A sweeper keeper is a more complete version of a goalkeeper who is not just focused on keeping opponents away from finding the back of the net. He acts almost like the eleventh outfield player and helps in teams playing out of the back and often starts counter-attacks with his pinpoint passing and long throws.
A sweeper keeper is best used for stronger teams who play a high line. He comes forward and often outside the box and negates the threat of his team being vulnerable in counter attacks.
However, not every goalkeeper can fulfill the role of a sweeper-keeper with good effect. If your keeper does not have the best passing, concentration, decision-making, and composure, it can result negatively.
Playing a sweeper keeper means that your keeper will be under a lot of pressure from opponents who will look to force a mistake. A keeper not suited to play the role of a sweeper keeper can concede possession in dangerous areas or sometimes even pass it directly to opponents while looking to find his teammates.
For every role in Football Manager, some specific attributes are needed and the same goes for sweeper keepers. Unless a keeper possesses the skills of playing a sweeper keeper, it is advisable to play him simply as a goalkeeper. Individual errors can be quite frustrating to watch especially when goalkeepers make errors directly leading to goal.
There are very few keepers in world football who are tailor-made to play as sweeper keepers. Not every top keeper is good enough technically to play as a sweeper keeper. And, it is best to play players in roles in which they are most comfortable.
Expecting Jan Oblak to play like Ederson can turn out to be a costly mistake that you need to avoid. For any position, do not just go for the fancier roles and rather try to find the way that brings out the best balance and chemistry on the pitch.