Not only are the six points behind Tottenham worrying, but so is the goal difference. Tottenham's goal production gives them an advantage, so United must work hard. They must win matches convincingly. A tall order, yet feasible. Consistency and, sadly, Tottenham dropping points will be essential. Having to wait isn't great
Next, the schedule. United's upcoming matches against Manchester City, Arsenal, and Liverpool could determine their top-four status. United will be tested in these key encounters. I think these games define their season. United may benefit from beating these top clubs. As a fan, I'm optimistic but realistic. It will be hard, but in football, the game isn't done until it's over
Indeed, being 6 points behind is not too heavy because if Tottenham lost just 2 matches then Manchester United could be ranked 4th, but yes, Manchester United's goal productivity is worse than Tottenham's, likewise Manchester United has conceded many goals which are equivalent to their total goal productivity, so Manchester United have not collected the number of goals they have so far even though they are ranked 6th. At least Manchester United must improve their back line so that they don't concede many goals so that their defense remains solid and Manchester United can focus on winning the match.
The next match that Manchester United will face will determine Manchester United next ranking, but if Tottenham and Aston Villa fail to win their match, but if both clubs are able to win their respective matches, then Manchester United will still be in 6th place. Manchester United task now is to consistently win so that they can take over the European League zone or the UCL zone.