Ifferentiate between Ordained Local Ministry and Licensed Lay Ministry in the Church of England today. What theology underpins the distinctions?

Discussion to include minimum of 1 quotation which is page referenced from a source

Referencing Requirements:
Croft,S.J.L. (1999), Ministry in three dimensions, London: DLT
Dewar, F. (2000) Called or Collared? An alternative approach to vocation, new edition, London: SPCK
Etchells,R. (1995), Set My People Free: a lay challenge to the churches, London: Fount
Kuhrt, G.W. & Nappin, P. (Eds) (2002), Bridging the Gap: Reader ministry today, London:CHP