I guess it would be at the expense of improving other attributes. It's generally easier to improve a strength than correct a weakness.
You do have a point though, and imagine if you could put together a team of both-footed players.
No idea.
If we could genuinely get £50 million for White, I'd be tempted to sell. Clearly it looks like he's going to be a very good player, but plenty of players don't go on to fulfil their potential, or get hampered by injuries etc. £50 million would give us the opportunity to really...