Don Mattrick almost killed the brand.
Don Mattrick saved the brand. The original Xbox was an awesome machine, but also an incredible money pit losing a billion dollars a year. The 360 had every advantage in timing and aggressive branding, and was a technical dream again...that also lost a billion dollars a year, and was rapidly overtaken by Wii, and outsold right from the start by PS3...and PS2. It was under Mr. Mattrick's leadership that the RROD problem was finally ended and its costs put into the past (literally). Seeing the record-shattering success of Wii, he properly sought to grab some of that market, and developed Kinect to marry casual interest with on-brand Xbox technical innovation. This culminated in Kinect's massively successful launch, which (alongside the 360 Slim he also oversaw) lead to the only years all generation where Xbox outsold PlayStation.
Mr. Mattrick was the leader behind that success. He can hardly be blamed for continuing and expanding this plan of attack with Xbox One. That the market had changed doesn't make him an idiot.
...the current state of Microsoft game lineup didn't emerge out of thin air it's a culmination of a now decade long schizophrenic identity crisis that's plagued the brand since the tail end of the 360 with the announcement of Kinect in 09 their interest was clearly to get Karen to toss her Wii in the closet.
Again, the Kinect years were by far the most successful Xbox has ever been.
As to the thread topic, I think it's interesting to look at the total game counts as well, not just exclusives. As of 3/22,
the PlayStation Store page for PS4 games listed 4569 items. Some are duplicates--special editions, promo bundles, etc.--but I removed those from the count.
The true number of unique PS4 games on the US store was 3653. There are undoubtedly hundreds more titles unique to the Japanese, Asian, and European stores.
Compare this to
the Xbox One store page. As of 3/22 it listed 1663 items. I again removed duplicates and a couple upcoming games.
The true number of unique Xbox One games on the US store was 1607. The note above regarding other stores also applies here, and would increase the count. However, on face value it appears there are far more PS4 titles available overall (127%).
It's such a big discrepancy that I thought perhaps I'm missing something, but I tried other sources and couldn't find anything official. The Wikipedia page lists 2323 items (once unreleased games are removed), but I have no idea if the data is correct. If there's not a Microsoft site that lists the extra games, what were the sources? If anyone is aware of a more definite listing, I'd like to know.
Even with this count, though, PS4 has 57% more games, period. That's actually a very considerable gap, especially since the truth is almost certainly above that.