If it weren't for Mourinho going to Rome, many people wouldn't be interested in Roma, but in the current situation, Mourinho did give Roma a promotion, but now roma's players in many positions are really not quite in line with his requirements, although there are some changes in Mourinho's tactics now, so if Oliveira also comes, can this team solve the team's problems? Obviously not.
The first center-back in the Roma team now is obviously a problem, the important problem is that it seems that every center-back is turning slowly?

Roma's biggest problem is still the center-back, this season, Roma's center-back turn is too slow, and the opponent now a lot of tactics is to play the ball behind Roma, and from another point of view, Roma's center-backs look like they are not capable of the ball, which is very troublesome. So this is why Roma play dense defense seems to be ineffective, the opponent is now basically playing roma behind the ball, the team does not have any way to solve this problem, before the rumors that the team wants to buy Nacho, but also want to solve this problem, after all, Nacho is a looking flexible defender, but the team looks like Nacho transfer failed, loaned Niles, Niles counted as a full-back, but also can solve the problem of the team's right-back without a substitute, but this center-back line needs a flexible player, Now at least there are no such players.
The midfield looks like Oliveira is coming, it's a defensive midfielder, and that's key
Oliveira is likely to play in the next league game, because it is about to be officially announced to the team, which is a midfielder who is not tall enough, but also a relatively strong midfielder. This player is good defensively, and has the ability to play the ball, it seems to be an answer to the current team's midfield problem, but he is not a player with good skills, so he is here to help the midfield defense, it is estimated that Oliveira and Welleto can play double midfield, Welletu organization, Oliveira is mainly defensive and out of the ball, this is also better than the current midfield match, but such a midfield, the team may have to play dense defense, the back line can not be a problem? So Oliveira will be better in the midfield, just like Heybel went to Tottenham, bringing promotion to the team, but the center-back still can't meet the requirements.
But the other big problem with this team is the front line, and the current front line does not meet the requirements of this tactic
Another problem with Mourinho's current intensive defensive tactics is the front, his team generally needs a fast forward, a real center with a stable goal, maybe a fast forward, although I don't know who it is now, but the real center who can score is the problem, Abraham is really too much to waste the opportunity to score, Zaniolo although playing in the center, but obviously the winger's idea, do not pass the idea. So the front problem is very troublesome, but there is no way, this problem will not be solved this season, so it seems that the midfield problem may be solved, but the defender and the front problem can not be solved, Roma's next game will still not have such a good result, it is so helpless. There is still no money, and if it can enter the Europa League this season, it may be a success.