Chris Wilder spoke openly and honestly as the summer transfer window slammed shut on Thursday evening, with United beating the deadline to bring in a young defender and an experienced Championship striker.
But Wilder also said there were 'mixed emotions' after seeing other deals not happen, through no fault of the club.
Focusing on the positives, the additions of Ben Heneghan and Clayton Donaldson from Motherwell and Birmingham City respectively, the Gaffer commented: "We're delighted to get Ben in and seeing the smile on his face when he came through the door, he's made up to be here.
"We've got some work to do with him, but he's a willing learner and he has the tools to become a very decent player.
"The big one for us was Clayton. He gives is pace and power at the top of the pitch, he has Championship experience and I've tried to sign him three or four times so I know a lot about him.
"He is an excellent player and an outstanding person too, so we're delighted with those two and we've covered two areas of the team. But we've got mixed emotions to be honest."
Wilder added: "We'd have love to have got the other three deals done, but I don't think myself or anyone else involved at our end could have done anymore to get these deals over the line.
"Unfortunately in these instances there are sometimes other outside influences that I can't control, not inside the club, but other people within the industry."