Haven't I see you someplace before? Dueling EVERYTHING - covers, titles, premises

Unknown-2 From Amazon: There are people in this world who are Nobody. No one sees them. No one notices them. They live their lives under the radar, forgotten as soon as you turn away.

That's why they make the perfect assassins.

The Institute finds these people when they're young and takes them away for training. But an untrained Nobody is a threat to their organization. And threats must be eliminated.

Unknown-3Unknown-3 From Amazon: They needed the perfect assassin.

Boy Nobody is the perennial new kid in school, the one few notice and nobody thinks much about. He shows up in a new high school in a new town under a new name, makes a few friends, and doesn't stay long. Just long enough for someone in his new friend's family to die-of "natural causes." Mission accomplished, Boy Nobody disappears, moving on to the next target.

I wonder if the coincidences are why they rebranded the paperback of Boy Nobody and renamed it I Am the Weapon. Some ideas just float around in the ether. 
I read both when they first came out, partly due to the fascination with the similar premise. I will say that JB's book is much more sci-fi (a different dimension of sorts exists), while AZ's is more Bourne Identity.
I did think the capitol Nobody signaled something a bit different.

Allen and I seem fated to have thrillers appearing on the same pub day, last year and this.
I'm beginning to think publishing a book is like owning a car. I have a gold car. The moment I saw it, I thought, "This is so unique! Nobody else has a gold car! I'll never lose it in a parking lot!" Then it drove it down my street. Apparently three of my five closest neighbors have gold cars. You'd think I would've noticed that sooner. I guess you only see what you're looking for.