He was asking what you meant by 'agricultural'...it's a good question because I don't know what that means either.
Your non 'complex viewpoint' that he isn't good enough I get.
Agricultural in this context means that he is uncultured, lacking in finesse and craft.
Valencia
Nani
Young
Giggs
Kagawa
I can't really see why he would become our 4th choice winger considering those players are in front of him. Cleverley won POTS for Watford and was farmed out on loan to Wigan before he got a crack at our first team. Regardless, I don't think that Brady has the skill set to be a top level player.
The Pre-Season tour is not a good indicator of player ability either, at least as an indicator for them being good enough for Manchester United anyway. I remember Lee Martin and Chris Eagle impressing on Pre-Season tour, even Dong managed to score a couple of smart goals on one tour too.
Players that I think have a good chance of becoming first team players.
Johnstone
A Pereira
W Keane
I am not a great watcher of defenders though so I wouldn't hazard a guess. People seem to forget that Welbeck is the only true Manchester United youth product to become a first team regular in recent years, I think since Darren Fletcher.