No specialists in a 50-50 game (3-8)

'no specialists' is the definition.
The definition and answer can be both people as well as being plural nouns.
Perhaps you can see a link between them that I don't see?

'in a 50-50 game' is the wordplay.
'in' is an insertion indicator.
'a 50 50' becomes 'alls' (I can't explain this - if you can you should give a lot more credence to this answer).
'game' becomes 'rounder' (I've seen this before).
'alls' enclosing 'rounder' is 'ALL-ROUNDERS'.