Yep this is spot on. People can go on about formations and players being in their 'correct' positions but this is something far more important. If you lack certain skills you're ****ed. And a striker who can get behind defences is one of the most important. Even if all it does it put defences under a bit more pressure. When we clear the ball out we need someone chasing the lost causes at speed. Often they're not lost causes after all. Defences playing against us are way too comfortable. Even if it just forces them into a backpass rather than launching it straight back into our box which is still full of players from the previous attack; just getting that time for our defence to get out and re-organise is very important.
Everton was a perfect example. Wave after wave and then eventually of course we concede the equaliser. You can hold an inquiry into why we didn't defend the 45th cross into the box but why where there so many? Because every time we cleared it there was no pressure on their defenders picking it up and sending it straight back again. We were pinned back.
Which is why I have always qualified my formation/position discussions with the fact that I believe such things can get in the way of football, which is principally player attributes, first, how they are used second. As a club we have made this mistake consistently under Bruce and Phelan. Don't ask what we achieved because of them, ask what we achieved despite them. Although that doesn't detract from the credit they earned for their successes.