It should've been a suicide mission.
Stauffenberg should have stayed in the room, making sure the bomb was as near to Hitler as possible. He would've died, but so would Hitler.
shareyes and no.
Of course it would have been more probable to succeed.
But nobody wants to die, and the explosive was supposedly enough to kill everyone in the room.
Lots of things went wrong. Same could have happened with a kamikaze.
You're right that a lot of things went wrong.
The delay in ordering the Valkyrie Alert.
Not killing Goebbels immediately.
Not blocking communications with the Wolf's Lair.
If only they had succeeded.....
You know that this was attempt #n, right?
Hitler was lucky and well protected, but many wanted him dead.
They should have planned better.