Elected House of Lords, what would we lose?

This is a sample of the experience that Crossbench (non party aligned) members of the House of Lords have. I'm worried that if the Lords is filled with people from party lists we will lose this wealth of experience, I don't see how getting more party affiliated politicians could possibly match these backgrounds.

• Psychiatric social worker and chairman of the Harold Shipman inquiry and the Baby P inquiry
• Former Chief Constable of West Midlands Police
• Professor of Zoology at the University of Oxford, former chair of the Food Standards Agency
• Former Permanent Secretary to the Foreign and Commonwealth Office and Head of the Diplomatic Service
• Former Permanent Secretary to the Foreign and Commonwealth Office and Head of the Diplomatic Service
• Former Commissioner of the Metropolitan Police
• Former Chief of the Defence Staff
• Human rights lawyer and former Chair of Oxfam
• Professor of Surgical Sciences at St Bartholomew's Hospital and the London School of Medicine and Dentistry, Queen Mary University
• Professor of the psychiatry of learning disability at St George's, University of London, former president of the Royal Society of Psychiatrists
• Professor of Law at Queen Mary College, University of London
• Vice-president of Catch22, ambassador of Make Justice Work
• Former Chair of the Broadcasting Standards Commission
• Former Archbishop of York
• Chair of the Children and Family Court Advisory and Support Service, former chief executive of ChildLine and vice-chair of the Lucy Faithfull Foundation
• Former Chancellor and Chief Commander of St John Ambulance and former Chief Nursing Officer of South East Thames Regional Health Authority
• Chair of the Prison Reform Trust and former Private Secretary to the Queen
• Professor of Palliative Medicine at the Cardiff University School of Medicine and former president of the Royal Society of Medicine
• Former director-general of Age Concern England
• Professor of Synaptic Pharmacology at Oxford University and former director of the Royal Institution
• Disabled athlete
• former director of news at the BBC, chairman of Creative & Cultural Skills and former chair of the Royal Television Society
• Chairman of Alpha Hospital Group, Chairman and Chief Executive Officer of the London International Hospital, former Executive Director & Chief Executive Officer of the Cromwell Hospital, President of The Little Foundation and Chairman of The Woolf Institute of Abrahamic Faiths
• Former chairman of The World Ship Trust
• Gresham Professor of Divinity, former Church of England Bishop of Oxford; Chair of the Human Fertility and Embryology Authority Ethics and Law Committee
• Former senior diplomat
• Former chairman of Northern Foods, former chairman of the Better Regulation Task Force and Chairman of the Council of the Open University
• The Lord Burns Crossbench Life peer Former chief economic advisor and permanent secretary at the treasury
• Former president of the Royal Academy of Engineering
• Former Director-General of the BBC
• Founder and CEO of the Humanitarian Aid Relief Trust
• Former chief executive of the Joseph Rowntree Social Service Trust and former chairman of both Refugee Action and the British Refugee Council
• etc.
• etc.
• etc.
• etc.