Everyone knows it isn't football manager. Why do you think 5th? Why not 7th or lower?
"5th place for me.I have seen no evidence to suggest otherwise." - is a nonsensical statement.
We are losing 3 players - One of whom was a bit part player, another one was past his best, and the loss of Vidic can be overcome by a good CB signing.
We don't need 8 players? Who told you that? We still have a good base of players in De Gea, Rafael, Evra, Smalling, Jones, Evans, Carrick, Januzaj, Valencia, Rooney, Mata and Van Persie. Some of them are world class. What we need is injection of quality in certain areas. Addition of 3 or 4 players in the first team is very different from overhauling the complete first XI. And we can manage to ease them in due to the available quality. It may be too much for a title challenge, but top 4 can be done fairly easily with the right manager.