WESFARMERS' disparate collection of businesses, taking in supermarkets, insurance, chemicals, hardware, office supplies and coal, squeezed out a 3 per cent rise in full-year profit as all the hard work poured into the turnaround of Coles was offset by a slump in coal prices and steeper resource royalty payments. But Wesfarmers chief executive Richard Goyder said he remained strongly wedded to the strengths and benefits of the conglomerate model and there were no plans to spin off its supermarkets division or make any other disposals. Mr Goyder said eight of the company's 10 reporting divisions improved their return on capital last year. He said the result was ''quite gratifying'' given the significant decline in earnings for its heavyweight resources division. Wesfarmers yesterday reported a slightly lower than expected profit of $1.565 billion, up 2.8 per cent, with revenue of $51.8 billion, up 1.7 per cent for the year.