They are his signings, as in he OK'd them. But if you mean, did Oscar sit through hours of football footage from various reserve games etc, and identify them as targets, its highly unlikely.
Who said, or pretended they are 'his signings' and why do they need to be 'his signings'.
A bunch of un-known Barca or Barca B youngsters, are going to be extremely risky for the club. Foreign country, foreign language, have to settle into a hotel, then move into a house/flat whatever, and try...
Its down to lots of criteria. How available is the player, wages, what are they like away from the club, contract status etc. Think we also use elements of Pro-zone against the player information we gather to look at targets.
Sure. But its no different to us not signing ANY Uruguyuan when Gus...