That's not true, really. I love Cahill and he is a fantastic player.
But I'm also not going to ignore what I've seen with my own eyes. With him in the team earlier on in the season, sure he got a lot of goals, but it's a team game. And we as a team were at the bottom end of the table and just couldn't win a game.
We had a post-Christmas surge, however, and that coincided with Cahill going away on international duty. In the few games he did play after that, if I recall correctly, we didn't do too well in them either.
The 2 formations that worked for us last season were 4-4-2* and 4-2-3-1. That's because 4-4-2 allowed us to stretch defences with Beckford's pace, whilst having Saha utilise the space. 4-2-3-1 is where Ossie truly shined. He showed that he offers more than Cahill in an attacking midfield kind of role, as he's a truly gifted footballer, and he found a lot of space for us.
I love Cahill, but if we can't fit him into a formation which doesn't compromise the effectiveness of the team, then we shouldn't fit him in at all.
*I say 4-4-2, but it was often a 4-4-1-1 with Saha in the Cahill role. I'm just emphasising the effectiveness of having two different, out and out strikers working in tandem.