Last week’s parliamentary report into the Carillion collapse called for a break-up of the Big Four accountants, saying they operated as a “cosy club incapable of providing the degree of independent challenge” that was required.

The debate has raged on with Labour at the weekend adding to the Lib Dems’ leader Sir Vince Cable’s call in Financial Director  earlier this year.

The gap between the Big Four and the rest of  the accountancy firms is widening, despite recent moves designed to reduce conflicts and spark more rivalry such as obliging quoted companies periodically to re-tender audits.

In March, Britain’s fifth-biggest firm, Grant Thornton, announced it would no longer tender for audits of FTSE 350 companies. It said that all retendered contracts were simply being passed reflexively around the big four.

Today’s interview with Schroders’ CFO Richard Keers confirms that view.

This week’s results:

Monday 21/5:

Ryanair Holdings (RYA): Finals

Tuesday 22/5:

Bloomsbury Publishing (BMY): Finals

Cranswick (CWK): Final

Halfords (HFD): Finals

Homeserve (HSV): Finals

Intermediate Capital Group (ICP): Finals

Shaftesbury (SHB): Interims

Topps Tiles (TPT): Interims

Wednesday 23/5:

Assura (AGR): Finals

Dairy Crest Group (DCG): Finals

Great Portland Estates (GPOR): Finals

Marks & Spencer Group (MKS): Finals

Severn Trent (SVT): Finals

Vedanta Resources (VED): Finals

Britvic (BVIC): Interims

Thursday 24/5:

Caledonia Investments (CLDN): Finals

Electrocomponents (ECM): Finals

Helical (HLC): Finals

QinetiQ Group (QQ.): Finals

Talktalk Telecom Group (TALK): Finals

Tate & Lyle (TATE): Finals

United Utilities Group (UU.): Finals

Young & Co’s Brewery (YNGA): Finals

Daily Mail & General Trust (DMGT): Interims

Friday 25/5:

Pennon Group (PNN): Finals

SSE (SSE): Finals