Sentence:  Although they believe they can <WSD>overhaul</WSD> their 2-0 deficit, they cannot afford to be as lethargic as this at Camp Nou, and the time is surely approaching when Manuel Pellegrini's faith in Martín Demichelis wavers. 
Meaning of the word marked with <WSD> tags:  To modernize, repair, renovate, or revise completely.