In spite of growing evidence of success, task-based instruction shows some limitations as well. One of the most significant and frequently voiced criticisms is that the method is not as effective or appropriate to lower level language learners with limited prior linguistic knowledge as it is to higher level students. Due to the significant amount of cognitive burden it poses on learners, beginning language learners who are asked to complete a challenging task in the target language often find the situation frustrating and, as a result, develop resistance to the learning method. When asked to use all the language they can muster to express themselves, beginning language learners who are unfamiliar with the learning context may not feel comfortable or productive as if they are thrown to a deep sea when they cannot swim (Willis, 1996). In task-based learning classrooms, frustration is not only with learners but with teachers as well. In his survey conducted among English as Second Language (ESL) teachers in East Asian countries, Littlewood (2007) found out that key obstacles to adopting task-based instructional approach in their classrooms were; 1) difficulties getting unmotivated students participate in tasks that usually require a higher level of motivation and enthusiasm from learners, and 2) inability to manage classroom as students get easily distracted and become noisy as they engage in group interaction to complete tasks collaboratively.