To an extent yes, they always seem to put Halo and Forza as there main titles. I just think they need to diversify more. Most of the IP's they have are shooters and don't really mix things up. They need to create unique ideas and appeal to other markets.
I don't think they necessarily need to create more new IPs so much as look back at what they already own and bring back.
I mean look at Mech Warrior or Flight sim. They own Rare still so why not make a new Conker game? Another Banjo-Kazooie game? Jet Force Gemini? Battletoads? Perfect Dark?
Plenty of good stuff to be done there.