attend or pay attention to?

[bosun]

Can I say attend instead of pay attention to? for example,

We need to attend that William is always late for work. or
we need to pay attention to the fact that william is always late for wrok. or
we need to be aware of the fact that william is always late for work.
which sound best?

also, if you see any problem in the following sentnece, can you correct them for me?
Recently, the unpractical plan has almost risked our company, so you need to think about whether your plan is practical when you offer a plan.It is important that all proposals should be realistic and profitable for the company .I am looking forward to your changed plan A.S.A.P.

[Anglika]

Can I say attend instead of pay attention to? for example,

We need to attend that William is always late for work. or
we need to pay attention to the fact that William is always late for work. or
we need to be aware of the fact that William is always late for work.
which sound best? The first one makes no sense.

also, if you see any problem in the following sentnece, can you correct them for me?
Recently an impractical plan has almost ruined our company, so you need to consider carefully whether your proposed plan is practical. It is important that all proposals should be realistic and profitable for the company. I look forward to receiving your changed plan A.S.A.P.