The XB1 wasn't ready for launch in 2013

[Carl]

Ive thought this for a while, one reason being launch titles.

Ryse was a 360 game.
Dead Rising 3 was a 360 game.
Crimson Dragon was a 360 game.
Forza 5 was clearly rushed.
Killer Instinct wasnt ready for a full release.

Dev tools apparently not fully ready, thus sub optimal games releasing...

They needed more time.