Interconnectedness, interdependence, and the overall beauty of Creation point to a designer.
But some things are "more designed than others," in the sense that their existence can't be explained by purely natural causes --those things which are irreducibly complex.
Design can also be proved negatively. For example, it is impossible for scientists to create and build a machine that can meet the specifications of a human being. Ask an engineer if it would be possible to design a machine to the following specifications:
1) The machine must be molecular in size, to start. Over a period of 15 years, the machine must "grow itself" to weigh over 100 lbs.
2) The machine must "run" on organic materials, such as vegetation, meats, water and sunlight.
3) The machine must be able to move bi-pedally over any terrrain.
4) The machine must be able to move through water.
5) The machine must be able to "see," "hear," "taste," "touch," and "smell," and be able to differentiate between objects (i.e., apprehend things).
6) The machine must replicate itself. 7) The machine must be able to form logical propositions.
8) The machine must be able to learn, and to pass this learning on to other similar machines. 9) The machine must be self-healing. I could go on and on. The point is that it is simply impossible to design and build such a machine, given all the resources in the world and the world's greatest scientists. The idea is laughable, given the current state of the natural sciences.
Look at Asimo. As someone with a degree in mechanical engineering, I can tell you that Asimo is a very impressive machine, but an absolute joke, when compared to the human musculo-skeletal system --an absolute joke. Just look at it in a medical encyclopedia, and tell me how scientists could create anything remotely similar.
Now, if the greatest scientists could not create anything remotely as complex as a "human machine," how could blind material forces?
Are blind material forces and chance greater designers than the most intelligent scientists? Chance is a better designer than intelligence? The notion is absurd.
I suggest you read Prov 16:33 and then come back and tell me how you came to the opinion that “random” means “not directed by God”.
All things are directed by God.
All things are designed by God.
Some things are not “more” designed by God than others just because they are complex. It is an either or proposition. Either something is designed or “just happened”.
If you truly believe in God and the Bible, then what in this universe are you willing to say “just happened” rather than being part of God's plan?
Simple answer: They can't. Evolution is no longer being defended by anybody with brains or talent, basically just by academic dead wood.