Chunking of banking is the norm; and for undertaking each of these chunks, there are some specialist entities who undertake only those chunks.
Payment service providers, 2  BIS central bankers’ speeches  P2P services, P2B services, (SME financing), consumer retail financing, disintermediation, crowd funding, open ended mutual funds, money market mutual funds, deposit alternatives, trade financing, invoice financing, bill discounters, bill collectors, credit referrals, account aggregators, interest free products, syndicators, investment bankers, MFIs, co-ops, HFCs and credit raters are some of the entities who chipped away chunk after chunk of banking.