How about instead of deliberating and guessing what happened, we wait until we have solid evidence from a thorough investigation before making comments?
Enough of this goes on during aviation and other transport incidents happen, pilot did this, driver did that, captain did such and such.
The staff are people too you know? How would you feel if you were in their position and you were being blamed by people who know none of the details?
I agree that there should have never been two trains in the same block, however there is obviously a deeper reason as to why this has happened, as we know, modern roller coasters are extremely safe, and designed to prevent exactly this. It's not a case of blaming someone just because it makes you feel better. Have some respect.
I sincerely hope everyone is able to make a full recovery, Alton Towers Resort and indeed Merlin have great people, well able to deal with the aftermath of this, and we can do nothing but cross our fingers for all those involved. Staff included.