Frimpong looks a great prospect, on the basis of pre season games and last years reserve games.
Eastmond does too, though looks more of a "Sitting" defensive midfielder in the mould of Gilberto, than Frimpong (and the less good but still decent Coquelin) who are more Essien type dynamic ball winners.
We sold two of these types in one season (Diarra, Flamini) and have yet to replace them, in my view a big part of our inability to hold onto leads. Without this type of player we lack the ability to keep pressure on the opposition, to take the sting out of opposition attacks.
But the age is relevant.
They must not be held back because of it, but at the same time, they should not be overplayed, and risk fatigue injuries.
They are still growing, and Fowler and Owen are two players who suffered bone fissures because of over playing at too young an age.
They will also find a large jump in quality and physicality in the Premier league, so experience and increased physical strength will matter.
That strength will come from 21 - 23, so I am in favour of bringing in someone who is top level now, and selling Diaby, Vela, Simpson, Randall, etc to pay for it.
The following link has a Frimpong opinion piece, I highlight this paragraph from that link.
http://legendaire.wordpress.com/2010/07 ... ong-story/
"
He quite simply is the ideal break up and simple pass it away man this team needs, I have nothing against Song, who performs an admirable role in the team, more of a shield to the defence rather than a Sword against the opposition, as Frimpong could be."