Re-write the following sentence making it more concise.
I have been trying to come up with some strategic solutions, but so far, I have not been able to come up with any.
I haven't found any strategic solutions yet.
Complete the following task based on the instruction and optional input provided.### Instruction:
Re-write the following sentence making it more concise.

### Input:
I have been trying to come up with some strategic solutions, but so far, I have not been able to come up with any.

### Output:
I haven't found any strategic solutions yet.