Better budgeting in recent years may have been seen as a movement from "incremental budgeting" to alternative budgeting approaches. However, academic studies (e.g. who needs Budgets – Hope and Fraser, 2003). argue that the annual budget model may be seen as (i) having a number of inherent weaknesses and (ii) acting as a barrier to the effective implementation of alternative models for use in the accomplishment of strategic change. Critically discuss the above statement. In your analysis, you need to Identify and critically assess FIVE inherent weaknesses of the annual budget model irrespective of the budgeting approach that is applied. Also, discuss the behaviour of the variable costs in total and per unit, and the behaviour of the fixed costs in total and per unit with the level of activity (use graphs to support your answer).