For David Moyes, there were plenty of reasons to be concerned after consecutive defeats to Everton and Newcastle.
Firstly, they were defeats, Manchester United's fourth and fifth of the season. It was also the first time United had lost successive home games in the Premier League since May 2002. That's not the kind of record Moyes wants to be associated with.
The two results all but ended United's hopes of retaining their title, and they also raised doubts about whether they can claw their way back into the top four before the end of the season. Languishing in ninth, seven points off the Champions League places, they will have to string a significant run together.
But apart from the damaging results, the two games highlighted United's fatal flaw: The midfield is simply not of the required standard for a club that wants to challenge for trophies at home and abroad.
It's nothing new.
The United fans have been calling for significant investment in the midfield since it became clear Owen Hargreaves was never going to return from injury. Marouane Fellaini has arrived from Everton, but he's yet to show he's worth the £27.5 million United paid.
Both played with three midfielders and a lone striker. Everton had Gareth Barry, James McCarthy and Ross Barkley. Newcastle had Yohan Cabaye, Cheick Tiote and Vurnon Anita.
They are good players, some of whom would improve Moyes' midfield. But they are not Zinedine Zidane, Didier Deschamps, Patrick Vieira or Emmanuel Petit. They are not Roy Keane or Paul Scholes.
It says much about Moyes' options that his most impressive midfielder this season has been Phil Jones, a player who wants to be a centre-half. He's been without Michael Carrick, but it still highlights United's problem.
Without Carrick, they've looked slow and aimless. Jones has done his best to inject some urgency and use his physicality, but he can't do it all on his own.
Moyes at least has the chance to find a short-term fix in January.
He has promised not to panic-buy, but it's unrealistic to expect United to be any better in the second half of the season without midfield reinforcements.
Moyes had a taste of window-shopping at the high end of the market in the summer. But he'll find players of a similar calibre aren't available midway through the season. Wesley Sneijder has just booked his place in the Champions League knockout rounds with Galatasaray, Kevin Strootman is settled at Roma and Borussia Dortmund midfielder Ilkay Gundogan is injured.
Instead, Moyes will have to be creative, much as Sir Alex Ferguson was when he signed Patrice Evra and Nemanja Vidic in January 2006, or when Henrik Larsson joined on loan from Helsingborg in January 2007.
He's shown in the past that he's open to similar deals after signing Landon Donovan twice at Everton during the the MLS break.
United's season doesn't depend on the January transfer window. It's more important that Moyes gets his existing players performing at a level somewhere near the one they were at last season.
But he'll struggle to be successful if the quality of his midfield doesn't match the club's ambition. It's something he'll have to address in the summer, but the January sales offer a chance to get started.