The following is an article written Adam Digby, correspondent for ESPN Soccernet.com, covering the past weekend's Milanese Derby.  Internazionale defeated AC Milan 1-0...  How different is Inter's squad now, then it was in the Fall? Is it different at all?  Who do they need to buy to insure their current success expands and grows?

With Juventus and Udinese dropping points, Milan came into the 205th Derby della Madonnina knowing it could open up a lead atop Serie A on Sunday night. However, with Inter on a five-game unbeaten run under new coach Claudio Ranieri it was never going to be that simple. And following Diego Milito's decisive strike, which gave Inter the 1-0 win over Milan, the Nerazzuri closed to within six points of the leader AC Milan. The buildup saw the fixture identified as an indicator of both sides' progress, with Massimiliano Allegri's side suffering its first league defeat since September. Here are three observations from the match:

1. Diego Milito is not Serie A's worst player

In being awarded the dubious honor of the Bidone d'Oro (Golden Trash Can) last month following a relatively poor 2011, Milito once again proved to be a big-game player. It was his fourth goal in three matches since being identified as the biggest flop and the latest in a long line of key strikes from the Argentine.

2. Tinkerman King on derby day

After not losing a derby in his time in Turin, through not losing to Lazio when he was in charge of hometown club Roma, Ranieri took a fantastic record into his first Milanese encounter. He would once again prove triumphant and continue a streak that must be the envy of many of his peers while continuing the fine form of his Inter side. His decision to stick with Ricardo Alvarez over the fit again Wesley Sneijder was a bold move, but it paid off for the former Chelsea man who got everything right.

3. Milan needs more than Carlos Tevez

After the former Manchester City captain became subject to a tug of war between the two Italian sides this week, Milan's deficiencies in other areas were clearly on show Sunday. Forced to drop Kevin-Prince Boateng into a deeper role, the use of Urby Emanuelson behind the strikers hurt the home side. The Dutchman's lack of quality was a key reason for Milan's struggles. Alberto Aquilani and Gennaro Gattuso missed out through injury and that lack of depth is a far more pressing concern for Milan than adding another temperamental if capable front man.

You can read more of Adam's work here, tune into our show today to catch our Serie A coverage!