1. It targeted a niche (discount computer retail) that was of interest to larger firms in Thailand, leaving it vulnerable to attacks from competitors once they noticed the niche was successful.
2. As a single niche strategy without diversifying into other related niches, Challenger lacked resilience and was unable to survive the attack from larger competitors.
3. Challenger apparently struggled financially as evidenced by its failure to pay rent, suggesting it did not have the resources necessary to withstand competition in the foreign Thai market over the long run.