Everyone always has the same response to TD rentals "if we had won the cup, no one would complain". But we didn't. Beyond that, the trade never at any time increased our odds by enough to justify the trade - unless it had worked - which it didn't. The vast majority of TD deals don't succeed to that degree. Therefore they are not a good bet. It is like buying lottery tickets. They are a horrible bet. A lot less is paid out in prizes than what is spent on tickets so it is bound to be a bad bet. Unless you win.
I don't think the Wheeler deal was a big negative. It was both a bit too long and a bit too much $$$. But it is a roll of the dice that I like much better than a TD rental.
Signing Helle was big compared to not signing him.
It absolutely needed to be done, but all that was required was a market value contract. I don't think it was ever in doubt. So it is a C. C is not bad. It is average, like most things are. All of the other signings are C's also. It doesn't matter how many you get, if all your grades are C's, your GPA is a C. Call the Wheeler deal a C also. The Mason deal was a D. Avg - C-.
This is your thread.
I'm just sticking to the criteria of the OP. I don't see room there for a trust bonus.