By Lars Mucklejohn Barclays has reportedly started cutting hundreds of roles, including at its investment bank, as the group looks to cut costs and improve its share price. The cuts will impact several hundred employees in Barclays’ global markets, investment banking and research divisions, according to Bloomberg News, citing unnamed sources. The people said the job cuts started on Wednesday. “We regularly review our talent pool to ensure that we can invest in talent and deliver for clients,” the bank said in a statement. The news comes as Barclays implements its biggest restructuring since th…