I haven't got a problem with Beckham running the midfield (or entire team a la Greece at old trafford) but you wouldn't want him running a football club.
clubs are run on judgement lets take a look at his record:
Haircuts
left Salford United and promtly won f*** all until his last season
married some stick insect with absolutely no talent and a penchant for spending what money he has got
If he did take over the manager would be Gazza and the backroom staff would be peter andre and jordan
and why would he want to come back from LA and take over a team with a worse record in the league cup than us.
On a more serious note however, I didn't realise Mr McGuigan had played. Do tell.