Playing the same side over and over again in a short period of time is never going to end well for anyone.
For a start, players get sick of the sight of each other and it becomes hard to get the same motivation for a cup clash with the team you’ve already faced a couple of times in the fortnight before.
Not to mention you get to know each other far too well – and players can lose their heads. One side cannot win four times against the same team in a fortnight and that will be a big concern for Deila.