In referencing the extra batsman i.e. QdK/Farhaan, I
assume you mean Abbott will miss out?
We started badly and have had a brilliant last couple of matches. That's enough to spur the guys on and make the players believe that they will win the world cup and actually go on to do that(I'm taking a chance with a decent money punt, something I didn't think I'd do

).
However, we will not win anything minus Philander. I repeat, we will not win anything minus Philander.
Other teams have bowlers who can absolutely rip through batting orders and have displayed it - Boult, Starc, Southee. We on the other do not have that bowler. I think it's already too late for Morkel&Steyn to get to that level, and to be honest they haven't shown any signs of being anywhere near that good. The only player who has done that is Philander.
As well as Abbott has done, he is no Philander!!!
1. Morkel is our leading wicket-taker in the tournament. In the latter stages of the tournament the other teams will prepare pitches to aid their tall quick seamers and benefit their strength. That will also aid Morkel.
2. The mere presence of Steyn in our line-up strikes still strikes a bit of fear in certain players.
3. Philander recently hurt Australia, while IND&NZ know him all too well. Conditions in NZ&AUS suit him.
What that means is there's no benefit in picking Abbott ahead of any of these players. He stands no chance against even a Shane Watson or Brendan McCullum. Things can get messy for him.
The best thing to do is select Philander and give him the matches to get back up to speed(even though it would help Abbott to have a chance to build on his form). The reality is we will and do need Philander. So if he's fit, Abbott MUST make way. I'm not sure they'll drop QdK/Farhaan so someone will have to make way.