Merge and Show Month and Year from two DateTime Type columns SQL

This way:

CREATE TABLE supportContacts 
	(
     FinansialID BIGINT IDENTITY(1,1) NOT NULL,
     OrganisationID  BIGINT,
     YearStart        DateTime ,
      YearEnd         DateTime 
    );

INSERT INTO supportContacts
(OrganisationID, YearStart,YearEnd)
VALUES
(1,'2013-03-01 00:00:00.000','2014-03-01 00:00:00.000')
INSERT INTO supportContacts
(OrganisationID, YearStart,YearEnd)
VALUES
(1,'2010-02-15 00:00:00.000','2010-12-27 00:00:00.000')
INSERT INTO supportContacts
(OrganisationID, YearStart,YearEnd)
VALUES
(1,'2008-12-29 00:00:00.000','2011-03-07 00:00:00.000')
INSERT INTO supportContacts
(OrganisationID, YearStart,YearEnd)
VALUES
(1,'2008-12-29 00:00:00.000','2011-03-03 00:00:00.000');

SELECT CAST(YearStart AS VARCHAR(3)) + ' ' + SUBSTRING(CONVERT(VARCHAR(50),YearStart),8,4) +' - '+ CAST(YearEnd AS VARCHAR(3)) + ' ' + SUBSTRING(CONVERT(VARCHAR(50),YearStart),8,4) AS [YEARSTART - YEAREND]
FROM  supportContacts

Thank You.