 A 2006 review by Simon noted that Donna lacked dedication to her job , and was easily distracted by her love life . Following an April 2008 interview with Jacobs , the itv.com website for the entertainment show This Morning observed that despite Donna 's " chaotic " personal life , she had grown more serious about her work . Ultimately , adopting her half @-@ niece Mia forced Donna to grow up , focussing on her career by attaining promotion to ward sister and accepting the resultant responsibilities . Reflecting on Donna 's development in January 2011 , Jacobs observed that she had changed a great deal from her early days , when she was used as a comical character with " bumbling one @-@ liners " , into a serious , more responsible person . 
