While Jimmy was still worrying about the coordinates, things weren't going well on Gus's side.
The chicken farm incident Jimmy mentioned before leaving was arranged by Eladio's men. After Gus framed Borsa, Eladio became displeased with Gus, who was gradually slipping from his control. So, he arranged for Gus's cargo truck to be hijacked and then killed two people at the chicken farm as a warning. Gus initially planned to endure it, but Jimmy's appearance became the straw that broke the camel's back.
Gus decided to settle the old scores with Eladio and needed to find a way to get close to him. This led to the arrangement for Mike to take Jesse to Mexico.
Eladio also had his eyes on Gus's blue meth. Since he wanted to control Gus strongly, he naturally wanted to grab the blue meth as well. Gus brought Jesse along to let Jesse make an appearance with Eladio's chemist team. If successful, he'd be able to use this to get close to Eladio.
