Seriously? "Chuck Versus the Bearded Bandit" sets up Morgan as the worst person version of himself--wildly overconfident, annoying, and bone-headed. The episode ends in a horrible, unforgivable place, Morgan going to Gertrude Verbanski. Then, "surprise!!" Morgan doesn't remember who Skywalker is--there's a problem with his brain, not a simple problem of character.
The problem would have worked much better if Morgan had been toned down a notch or two and the cockiness resolved by the end of the episode. Another solution would be to build up Morgan's new attitude slower, stretching it out over two episodes, and focus more on the case. There are elements of the episode that work, like Chuck tasked to become Morgan's handler. But with Morgan going crazy, there wasn't any exploration into that.
The spy mission usually doesn't make sense, but I found this week's to be more incoherent than usual. The writers make it a point to verify the story of the brother being kidnapped, but the story is completely wrong. All Morgan had to "zoom" on was that he's in witness protection. Does Carmichael Industries not have the capability to find out something as simple as that?